82 files changed, 6448 insertions, 6448 deletions
diff --git a/engine/classes/APIException.php b/engine/classes/APIException.php
index 6ce9424d8..a16ea3e62 100644
--- a/engine/classes/APIException.php
+++ b/engine/classes/APIException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * API Exception Stub
- *
- * Generic parent class for API exceptions.
- *
- * @package Elgg.Core
- * @subpackage Exceptions.Stub
- */
+<?php
+/**
+ * API Exception Stub
+ *
+ * Generic parent class for API exceptions.
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions.Stub
+ */
 class APIException extends Exception {}
 \ No newline at end of file
diff --git a/engine/classes/AccessControlQueryComponent.php b/engine/classes/AccessControlQueryComponent.php
index 7808800bc..07028462f 100644
--- a/engine/classes/AccessControlQueryComponent.php
+++ b/engine/classes/AccessControlQueryComponent.php
@@ -1,39 +1,39 @@
-<?php
-/**
- * The access control component of the query class.
- *
- * @todo probably remove.
- * @access private
- * @package Elgg.Core
- * @subpackage Unimplemented
- */
-class AccessControlQueryComponent extends QueryComponent {
-	/**
-	 * Construct the ACL.
-	 *
-	 * @param string $acl_table The table where the access control field is.
-	 * @param string $acl_field The field containing the access control.
-	 * @param string $object_owner_table The table containing the owner information for the stuff you're retrieving.
-	 * @param string $object_owner_id_field The field in $object_owner_table containing the owner information
-	 */
-	function __construct($acl_table = "entities", $acl_field = "access_id", $object_owner_table = "entities", $object_owner_id_field = "owner_guid") {
-		global $CONFIG;
-
-		$this->acl_table = $CONFIG->dbprefix . sanitise_string($acl_table);
-		$this->acl_field = sanitise_string($acl_field);
-		$this->object_owner_table = $CONFIG->dbprefix . sanitise_string($object_owner_table);
-		$this->object_owner_id_field = sanitise_string($object_owner_id_field);
-	}
-
-	function __toString() {
-		//$access = get_access_list();
-		// KJ - changed to use get_access_sql_suffix
-		// Note: currently get_access_sql_suffix is hardwired to use
-		// $acl_field = "access_id", $object_owner_table = $acl_table, and
-		// $object_owner_id_field = "owner_guid"
-		// @todo recode get_access_sql_suffix to make it possible to specify alternate field names
-		return "and ".get_access_sql_suffix($this->acl_table); // Add access controls
-
-		//return "and ({$this->acl_table}.{$this->acl_field} in {$access} or ({$this->acl_table}.{$this->acl_field} = 0 and {$this->object_owner_table}.{$this->object_owner_id_field} = {$_SESSION['id']}))";
-	}
+<?php
+/**
+ * The access control component of the query class.
+ *
+ * @todo probably remove.
+ * @access private
+ * @package Elgg.Core
+ * @subpackage Unimplemented
+ */
+class AccessControlQueryComponent extends QueryComponent {
+	/**
+	 * Construct the ACL.
+	 *
+	 * @param string $acl_table The table where the access control field is.
+	 * @param string $acl_field The field containing the access control.
+	 * @param string $object_owner_table The table containing the owner information for the stuff you're retrieving.
+	 * @param string $object_owner_id_field The field in $object_owner_table containing the owner information
+	 */
+	function __construct($acl_table = "entities", $acl_field = "access_id", $object_owner_table = "entities", $object_owner_id_field = "owner_guid") {
+		global $CONFIG;
+
+		$this->acl_table = $CONFIG->dbprefix . sanitise_string($acl_table);
+		$this->acl_field = sanitise_string($acl_field);
+		$this->object_owner_table = $CONFIG->dbprefix . sanitise_string($object_owner_table);
+		$this->object_owner_id_field = sanitise_string($object_owner_id_field);
+	}
+
+	function __toString() {
+		//$access = get_access_list();
+		// KJ - changed to use get_access_sql_suffix
+		// Note: currently get_access_sql_suffix is hardwired to use
+		// $acl_field = "access_id", $object_owner_table = $acl_table, and
+		// $object_owner_id_field = "owner_guid"
+		// @todo recode get_access_sql_suffix to make it possible to specify alternate field names
+		return "and ".get_access_sql_suffix($this->acl_table); // Add access controls
+
+		//return "and ({$this->acl_table}.{$this->acl_field} in {$access} or ({$this->acl_table}.{$this->acl_field} = 0 and {$this->object_owner_table}.{$this->object_owner_id_field} = {$_SESSION['id']}))";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/CallException.php b/engine/classes/CallException.php
index aaa55a653..e39703454 100644
--- a/engine/classes/CallException.php
+++ b/engine/classes/CallException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Call Exception Stub
- *
- * Generic parent class for Call exceptions
- *
- * @package Elgg.Core
- * @subpackage Exceptions.Stub
- */
+<?php
+/**
+ * Call Exception Stub
+ *
+ * Generic parent class for Call exceptions
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions.Stub
+ */
 class CallException extends Exception {}
 \ No newline at end of file
diff --git a/engine/classes/ClassException.php b/engine/classes/ClassException.php
index 50dd18d18..db510a68d 100644
--- a/engine/classes/ClassException.php
+++ b/engine/classes/ClassException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Class Exception
- *
- * A generic parent class for Class exceptions
- *
- * @package Elgg.Core
- * @subpackage Exceptions.Stub
- */
-class ClassException extends Exception {}
+<?php
+/**
+ * Class Exception
+ *
+ * A generic parent class for Class exceptions
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions.Stub
+ */
+class ClassException extends Exception {}
diff --git a/engine/classes/ClassNotFoundException.php b/engine/classes/ClassNotFoundException.php
index f35b2e40a..a24034054 100644
--- a/engine/classes/ClassNotFoundException.php
+++ b/engine/classes/ClassNotFoundException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Class not found
- *
- * Thrown when trying to load a class that doesn't exist.
- *
- * @package Elgg.Core
- * @subpackage Exceptions
- */
+<?php
+/**
+ * Class not found
+ *
+ * Thrown when trying to load a class that doesn't exist.
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions
+ */
 class ClassNotFoundException extends ClassException {}
 \ No newline at end of file
diff --git a/engine/classes/ConfigurationException.php b/engine/classes/ConfigurationException.php
index adccdbc11..8fb861062 100644
--- a/engine/classes/ConfigurationException.php
+++ b/engine/classes/ConfigurationException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Configuration exception
- *
- * A generic parent class for Configuration exceptions
- *
- * @package Elgg
- * @subpackage Exceptions.Stub
- */
-class ConfigurationException extends Exception {}
+<?php
+/**
+ * Configuration exception
+ *
+ * A generic parent class for Configuration exceptions
+ *
+ * @package Elgg
+ * @subpackage Exceptions.Stub
+ */
+class ConfigurationException extends Exception {}
diff --git a/engine/classes/CronException.php b/engine/classes/CronException.php
index 440fa9481..164170daf 100644
--- a/engine/classes/CronException.php
+++ b/engine/classes/CronException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Cron exception
- *
- * A generic parent class for cron exceptions
- *
- * @package Elgg
- * @subpackage Exceptions.Stub
- */
+<?php
+/**
+ * Cron exception
+ *
+ * A generic parent class for cron exceptions
+ *
+ * @package Elgg
+ * @subpackage Exceptions.Stub
+ */
 class CronException extends Exception {}
 \ No newline at end of file
diff --git a/engine/classes/DataFormatException.php b/engine/classes/DataFormatException.php
index be443efce..50d25f56f 100644
--- a/engine/classes/DataFormatException.php
+++ b/engine/classes/DataFormatException.php
@@ -1,9 +1,9 @@
-<?php
-/**
- * Data format exception
- * An exception thrown when there is a problem in the format of some data.
- *
- * @package Elgg.Core
- * @subpackage Exceptions.Stub
- */
-class DataFormatException extends Exception {}
+<?php
+/**
+ * Data format exception
+ * An exception thrown when there is a problem in the format of some data.
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions.Stub
+ */
+class DataFormatException extends Exception {}
diff --git a/engine/classes/DatabaseException.php b/engine/classes/DatabaseException.php
index 06ffd6782..011492417 100644
--- a/engine/classes/DatabaseException.php
+++ b/engine/classes/DatabaseException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * Database Exception
- *
- * A generic parent class for database exceptions
- *
- * @package Elgg.Core
- * @subpackage Exceptions.Stub
- */
-class DatabaseException extends Exception {}
+<?php
+/**
+ * Database Exception
+ *
+ * A generic parent class for database exceptions
+ *
+ * @package Elgg.Core
+ * @subpackage Exceptions.Stub
+ */
+class DatabaseException extends Exception {}
diff --git a/engine/classes/DeleteQueryTypeQueryComponent.php b/engine/classes/DeleteQueryTypeQueryComponent.php
index 328c57b31..a697306d4 100644
--- a/engine/classes/DeleteQueryTypeQueryComponent.php
+++ b/engine/classes/DeleteQueryTypeQueryComponent.php
@@ -1,16 +1,16 @@
-<?php
-/**
- * Delete query
- *
- * @todo probably remove.
- * @access private
- * @package Elgg.Core
- * @subpackage Unimplemented
- */
-class DeleteQueryTypeQueryComponent extends QueryTypeQueryComponent
-{
-	function __construct()
-	{
-		$this->query_type = "DELETE FROM";
-	}
-}
+<?php
+/**
+ * Delete query
+ *
+ * @todo probably remove.
+ * @access private
+ * @package Elgg.Core
+ * @subpackage Unimplemented
+ */
+class DeleteQueryTypeQueryComponent extends QueryTypeQueryComponent
+{
+	function __construct()
+	{
+		$this->query_type = "DELETE FROM";
+	}
+}
diff --git a/engine/classes/ElggAccess.php b/engine/classes/ElggAccess.php
index fd511ca58..eee5ec963 100644
--- a/engine/classes/ElggAccess.php
+++ b/engine/classes/ElggAccess.php
@@ -1,38 +1,38 @@
-<?php
-/**
- * Class used to determin if access is being ignored.
- *
- * @access private
- * @todo I don't remember why this was required beyond scope concerns.
- * @see elgg_get_ignore_access()
- * @package Elgg.Core
- * @subpackage Access
- */
-class ElggAccess {
-	/**
-	 * Bypass Elgg's access control if true.
-	 * @var bool
-	 */
-	private $ignore_access;
-
-	/**
-	 * Get current ignore access setting.
-	 * @return bool
-	 */
-	public function get_ignore_access() {
-		return $this->ignore_access;
-	}
-
-	/**
-	 * Set ignore access.
-	 *
-	 * @param $ignore bool true || false to ignore
-	 * @return bool Previous setting
-	 */
-	public function set_ignore_access($ignore = true) {
-		$prev = $this->ignore_access;
-		$this->ignore_access = $ignore;
-
-		return $prev;
-	}
+<?php
+/**
+ * Class used to determin if access is being ignored.
+ *
+ * @access private
+ * @todo I don't remember why this was required beyond scope concerns.
+ * @see elgg_get_ignore_access()
+ * @package Elgg.Core
+ * @subpackage Access
+ */
+class ElggAccess {
+	/**
+	 * Bypass Elgg's access control if true.
+	 * @var bool
+	 */
+	private $ignore_access;
+
+	/**
+	 * Get current ignore access setting.
+	 * @return bool
+	 */
+	public function get_ignore_access() {
+		return $this->ignore_access;
+	}
+
+	/**
+	 * Set ignore access.
+	 *
+	 * @param $ignore bool true || false to ignore
+	 * @return bool Previous setting
+	 */
+	public function set_ignore_access($ignore = true) {
+		$prev = $this->ignore_access;
+		$this->ignore_access = $ignore;
+
+		return $prev;
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggAnnotation.php b/engine/classes/ElggAnnotation.php
index 709e28433..ec2cedfe5 100644
--- a/engine/classes/ElggAnnotation.php
+++ b/engine/classes/ElggAnnotation.php
@@ -1,110 +1,110 @@
-<?php
-/**
- * Elgg Annotations
- *
- * Annotations allow you to attach bits of information to entities.
- * They are essentially the same as metadata, but with additional
- * helper functions.
- *
- * @internal Annotations are stored in the annotations table.
- *
- * @package Elgg.Core
- * @subpackage DataModel.Annotations
- * @link http://docs.elgg.org/DataModel/Annotations
- */
-class ElggAnnotation extends ElggExtender {
-
-	/**
-	 * Construct a new annotation, optionally from a given id value or db object.
-	 *
-	 * @param mixed $id
-	 */
-	function __construct($id = null) {
-		$this->attributes = array();
-
-		if (!empty($id)) {
-			if ($id instanceof stdClass) {
-				$annotation = $id;
-			} else {
-				$annotation = get_annotation($id);
-			}
-
-			if ($annotation) {
-				$objarray = (array) $annotation;
-
-				foreach($objarray as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-
-				$this->attributes['type'] = "annotation";
-			}
-		}
-	}
-
-	/**
-	 * Class member get overloading
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	function __get($name) {
-		return $this->get($name);
-	}
-
-	/**
-	 * Class member set overloading
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @return void
-	 */
-	function __set($name, $value) {
-		return $this->set($name, $value);
-	}
-
-	/**
-	 * Save this instance
-	 *
-	 * @return int an object id
-	 */
-	function save() {
-		if ($this->id > 0) {
-			return update_annotation($this->id, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
-		} else {
-			$this->id = create_annotation($this->entity_guid, $this->name, $this->value,
-				$this->value_type, $this->owner_guid, $this->access_id);
-
-			if (!$this->id) {
-				throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
-			}
-			return $this->id;
-		}
-	}
-
-	/**
-	 * Delete the annotation.
-	 */
-	function delete() {
-		return delete_annotation($this->id);
-	}
-
-	/**
-	 * Get a url for this annotation.
-	 *
-	 * @return string
-	 */
-	public function getURL() {
-		return get_annotation_url($this->id);
-	}
-
-	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * For a given ID, return the object associated with it.
-	 * This is used by the river functionality primarily.
-	 * This is useful for checking access permissions etc on objects.
-	 */
-	public function getObjectFromID($id) {
-		return get_annotation($id);
-	}
+<?php
+/**
+ * Elgg Annotations
+ *
+ * Annotations allow you to attach bits of information to entities.
+ * They are essentially the same as metadata, but with additional
+ * helper functions.
+ *
+ * @internal Annotations are stored in the annotations table.
+ *
+ * @package Elgg.Core
+ * @subpackage DataModel.Annotations
+ * @link http://docs.elgg.org/DataModel/Annotations
+ */
+class ElggAnnotation extends ElggExtender {
+
+	/**
+	 * Construct a new annotation, optionally from a given id value or db object.
+	 *
+	 * @param mixed $id
+	 */
+	function __construct($id = null) {
+		$this->attributes = array();
+
+		if (!empty($id)) {
+			if ($id instanceof stdClass) {
+				$annotation = $id;
+			} else {
+				$annotation = get_annotation($id);
+			}
+
+			if ($annotation) {
+				$objarray = (array) $annotation;
+
+				foreach($objarray as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+
+				$this->attributes['type'] = "annotation";
+			}
+		}
+	}
+
+	/**
+	 * Class member get overloading
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	function __get($name) {
+		return $this->get($name);
+	}
+
+	/**
+	 * Class member set overloading
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @return void
+	 */
+	function __set($name, $value) {
+		return $this->set($name, $value);
+	}
+
+	/**
+	 * Save this instance
+	 *
+	 * @return int an object id
+	 */
+	function save() {
+		if ($this->id > 0) {
+			return update_annotation($this->id, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
+		} else {
+			$this->id = create_annotation($this->entity_guid, $this->name, $this->value,
+				$this->value_type, $this->owner_guid, $this->access_id);
+
+			if (!$this->id) {
+				throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
+			}
+			return $this->id;
+		}
+	}
+
+	/**
+	 * Delete the annotation.
+	 */
+	function delete() {
+		return delete_annotation($this->id);
+	}
+
+	/**
+	 * Get a url for this annotation.
+	 *
+	 * @return string
+	 */
+	public function getURL() {
+		return get_annotation_url($this->id);
+	}
+
+	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * For a given ID, return the object associated with it.
+	 * This is used by the river functionality primarily.
+	 * This is useful for checking access permissions etc on objects.
+	 */
+	public function getObjectFromID($id) {
+		return get_annotation($id);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggCache.php b/engine/classes/ElggCache.php
index f10b6d9ea..a494471b9 100644
--- a/engine/classes/ElggCache.php
+++ b/engine/classes/ElggCache.php
@@ -1,162 +1,162 @@
-<?php
-/**
- * ElggCache The elgg cache superclass.
- * This defines the interface for a cache (wherever that cache is stored).
- *
- * @package Elgg.Core
- * @subpackage Cache
- */
-abstract class ElggCache implements
-	// Override for array access
-	ArrayAccess  {
-	/**
-	 * Variables for the cache object.
-	 *
-	 * @var array
-	 */
-	private $variables;
-
-	/**
-	 * Set the constructor.
-	 */
-	function __construct() {
-		$this->variables = array();
-	}
-
-	/**
-	 * Set a cache variable.
-	 *
-	 * @param string $variable
-	 * @param string $value
-	 */
-	public function set_variable($variable, $value) {
-		if (!is_array($this->variables)) {
-			$this->variables = array();
-		}
-
-		$this->variables[$variable] = $value;
-	}
-
-	/**
-	 * Get variables for this cache.
-	 *
-	 * @param string $variable
-	 * @return mixed The variable or null;
-	 */
-	public function get_variable($variable) {
-		if (isset($this->variables[$variable])) {
-			return $this->variables[$variable];
-		}
-
-		return null;
-	}
-
-	/**
-	 * Class member get overloading, returning key using $this->load defaults.
-	 *
-	 * @param string $key
-	 * @return mixed
-	 */
-	function __get($key) {
-		return $this->load($key);
-	}
-
-	/**
-	 * Class member set overloading, setting a key using $this->save defaults.
-	 *
-	 * @param string $key
-	 * @param mixed $value
-	 * @return mixed
-	 */
-	function __set($key, $value) {
-		return $this->save($key, $value);
-	}
-
-	/**
-	 * Supporting isset, using $this->load() with default values.
-	 *
-	 * @param string $key The name of the attribute or metadata.
-	 * @return bool
-	 */
-	function __isset($key) {
-		return (bool)$this->load($key);
-	}
-
-	/**
-	 * Supporting unsetting of magic attributes.
-	 *
-	 * @param string $key The name of the attribute or metadata.
-	 */
-	function __unset($key) {
-		return $this->delete($key);
-	}
-
-	/**
-	 * Save data in a cache.
-	 *
-	 * @param string $key
-	 * @param string $data
-	 * @return bool
-	 */
-	abstract public function save($key, $data);
-
-	/**
-	 * Load data from the cache using a given key.
-	 *
-	 * @param string $key
-	 * @param int $offset
-	 * @param int $limit
-	 * @return mixed The stored data or false.
-	 */
-	abstract public function load($key, $offset = 0, $limit = null);
-
-	/**
-	 * Invalidate a key
-	 *
-	 * @param string $key
-	 * @return bool
-	 */
-	abstract public function delete($key);
-
-	/**
-	 * Clear out all the contents of the cache.
-	 *
-	 */
-	abstract public function clear();
-
-	/**
-	 * Add a key only if it doesn't already exist.
-	 * Implemented simply here, if you extend this class and your caching engine provides a better way then
-	 * override this accordingly.
-	 *
-	 * @param string $key
-	 * @param string $data
-	 * @return bool
-	 */
-	public function add($key, $data) {
-		if (!isset($this[$key])) {
-			return $this->save($key, $data);
-		}
-
-		return false;
-	}
-
-	// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
-	function offsetSet($key, $value) {
-		$this->save($key, $value);
-	}
-
-	function offsetGet($key) {
-		return $this->load($key);
-	}
-
-	function offsetUnset($key) {
-		if ( isset($this->key) ) {
-			unset($this->key);
-		}
-	}
-
-	function offsetExists($offset) {
-		return isset($this->$offset);
-	}
+<?php
+/**
+ * ElggCache The elgg cache superclass.
+ * This defines the interface for a cache (wherever that cache is stored).
+ *
+ * @package Elgg.Core
+ * @subpackage Cache
+ */
+abstract class ElggCache implements
+	// Override for array access
+	ArrayAccess  {
+	/**
+	 * Variables for the cache object.
+	 *
+	 * @var array
+	 */
+	private $variables;
+
+	/**
+	 * Set the constructor.
+	 */
+	function __construct() {
+		$this->variables = array();
+	}
+
+	/**
+	 * Set a cache variable.
+	 *
+	 * @param string $variable
+	 * @param string $value
+	 */
+	public function set_variable($variable, $value) {
+		if (!is_array($this->variables)) {
+			$this->variables = array();
+		}
+
+		$this->variables[$variable] = $value;
+	}
+
+	/**
+	 * Get variables for this cache.
+	 *
+	 * @param string $variable
+	 * @return mixed The variable or null;
+	 */
+	public function get_variable($variable) {
+		if (isset($this->variables[$variable])) {
+			return $this->variables[$variable];
+		}
+
+		return null;
+	}
+
+	/**
+	 * Class member get overloading, returning key using $this->load defaults.
+	 *
+	 * @param string $key
+	 * @return mixed
+	 */
+	function __get($key) {
+		return $this->load($key);
+	}
+
+	/**
+	 * Class member set overloading, setting a key using $this->save defaults.
+	 *
+	 * @param string $key
+	 * @param mixed $value
+	 * @return mixed
+	 */
+	function __set($key, $value) {
+		return $this->save($key, $value);
+	}
+
+	/**
+	 * Supporting isset, using $this->load() with default values.
+	 *
+	 * @param string $key The name of the attribute or metadata.
+	 * @return bool
+	 */
+	function __isset($key) {
+		return (bool)$this->load($key);
+	}
+
+	/**
+	 * Supporting unsetting of magic attributes.
+	 *
+	 * @param string $key The name of the attribute or metadata.
+	 */
+	function __unset($key) {
+		return $this->delete($key);
+	}
+
+	/**
+	 * Save data in a cache.
+	 *
+	 * @param string $key
+	 * @param string $data
+	 * @return bool
+	 */
+	abstract public function save($key, $data);
+
+	/**
+	 * Load data from the cache using a given key.
+	 *
+	 * @param string $key
+	 * @param int $offset
+	 * @param int $limit
+	 * @return mixed The stored data or false.
+	 */
+	abstract public function load($key, $offset = 0, $limit = null);
+
+	/**
+	 * Invalidate a key
+	 *
+	 * @param string $key
+	 * @return bool
+	 */
+	abstract public function delete($key);
+
+	/**
+	 * Clear out all the contents of the cache.
+	 *
+	 */
+	abstract public function clear();
+
+	/**
+	 * Add a key only if it doesn't already exist.
+	 * Implemented simply here, if you extend this class and your caching engine provides a better way then
+	 * override this accordingly.
+	 *
+	 * @param string $key
+	 * @param string $data
+	 * @return bool
+	 */
+	public function add($key, $data) {
+		if (!isset($this[$key])) {
+			return $this->save($key, $data);
+		}
+
+		return false;
+	}
+
+	// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
+	function offsetSet($key, $value) {
+		$this->save($key, $value);
+	}
+
+	function offsetGet($key) {
+		return $this->load($key);
+	}
+
+	function offsetUnset($key) {
+		if ( isset($this->key) ) {
+			unset($this->key);
+		}
+	}
+
+	function offsetExists($offset) {
+		return isset($this->$offset);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggEntity.php b/engine/classes/ElggEntity.php
index f793f67c0..37722243c 100644
--- a/engine/classes/ElggEntity.php
+++ b/engine/classes/ElggEntity.php
@@ -1,1349 +1,1349 @@
-<?php
-/**
- * The parent class for all Elgg Entities.
- *
- * An ElggEntity is one of the basic data models in Elgg.  It is the primary
- * means of storing and retrieving data from the database.  An ElggEntity
- * represents one row of the entities table.
- *
- * The ElggEntity class handles CRUD operations for the entities table.
- * ElggEntity should always be extended by another class to handle CRUD
- * operations on the type-specific table.
- *
- * ElggEntity uses magic methods for get and set, so any property that isn't
- * declared will be assumed to be metadata and written to the database
- * as metadata on the object.  All children classes must declare which
- * properties are columns of the type table or they will be assumed
- * to be metadata.  See ElggObject::initialise_entities() for examples.
- *
- * Core supports 4 types of entities: ElggObject, ElggUser, ElggGroup, and
- * ElggSite.
- *
- * @tip Most plugin authors will want to extend the ElggObject class
- * instead of this class.
- *
- * @package Elgg.Core
- * @subpackage DataMode.Entities
- * @link http://docs.elgg.org/DataModel/ElggEntity
- */
-abstract class ElggEntity implements
-	Notable,    // Calendar interface
-	Locatable,  // Geocoding interface
-	Exportable, // Allow export of data
-	Importable, // Allow import of data
-	Loggable,	// Can events related to this object class be logged
-	Iterator,	// Override foreach behaviour
-	ArrayAccess // Override for array access
-{
-	/**
-	 * The main attributes of an entity.
-	 * Blank entries for all database fields should be created by the constructor.
-	 * Subclasses should add to this in their constructors.
-	 * Any field not appearing in this will be viewed as a
-	 */
-	protected $attributes;
-
-	/**
-	 * If set, overrides the value of getURL()
-	 */
-	protected $url_override;
-
-	/**
-	 * Icon override, overrides the value of getIcon().
-	 */
-	protected $icon_override;
-
-	/**
-	 * Holds metadata until entity is saved.  Once the entity is saved, metadata are written immediately to the database.
-	 */
-	protected $temp_metadata;
-
-	/**
-	 * Holds annotations until entity is saved.  Once the entity is saved, annotations are written immediately to the database.
-	 */
-	protected $temp_annotations;
-
-
-	/**
-	 * Volatile data structure for this object, allows for storage of data
-	 * in-memory that isn't sync'd back to the metadata table.
-	 */
-	protected $volatile;
-
-	/**
-	 * Initialise the attributes array.
-	 *
-	 * This is vital to distinguish between metadata and base parameters.
-	 *
-	 * @return void
-	 */
-	protected function initialise_attributes() {
-		initialise_entity_cache();
-
-		// Create attributes array if not already created
-		if (!is_array($this->attributes)) {
-			$this->attributes = array();
-		}
-		if (!is_array($this->temp_metadata)) {
-			$this->temp_metadata = array();
-		}
-		if (!is_array($this->temp_annotations)) {
-			$this->temp_annotations = array();
-		}
-		if (!is_array($this->volatile)) {
-			$this->volatile = array();
-		}
-
-		$this->attributes['guid'] = "";
-		$this->attributes['type'] = "";
-		$this->attributes['subtype'] = "";
-
-		$this->attributes['owner_guid'] = get_loggedin_userid();
-		$this->attributes['container_guid'] = get_loggedin_userid();
-
-		$this->attributes['site_guid'] = 0;
-		$this->attributes['access_id'] = ACCESS_PRIVATE;
-		$this->attributes['time_created'] = "";
-		$this->attributes['time_updated'] = "";
-		$this->attributes['last_action'] = '';
-		$this->attributes['enabled'] = "yes";
-
-		// There now follows a bit of a hack
-		/* Problem: To speed things up, some objects are split over several tables, this means that it requires
-		 * n number of database reads to fully populate an entity. This causes problems for caching and create events
-		 * since it is not possible to tell whether a subclassed entity is complete.
-		 * Solution: We have two counters, one 'tables_split' which tells whatever is interested how many tables
-		 * are going to need to be searched in order to fully populate this object, and 'tables_loaded' which is how
-		 * many have been loaded thus far.
-		 * If the two are the same then this object is complete.
-		 *
-		 * Use: isFullyLoaded() to check
-		 */
-		$this->attributes['tables_split'] = 1;
-		$this->attributes['tables_loaded'] = 0;
-	}
-
-	/**
-	 * Clone an entity
-	 *
-	 * Resets the guid so that the entity can be saved as a distinct entity from
-	 * the original. Creation time will be set when this new entity is saved.
-	 * The owner and container guids come from the original entity. The clone
-	 * method copies metadata but does not copy annotations or private settings.
-	 *
-	 * @note metadata will have its owner and access id set when the entity is saved
-	 * and it will be the same as that of the entity.
-	 */
-	public function __clone() {
-		$orig_entity = get_entity($this->guid);
-		if (!$orig_entity) {
-			elgg_log("Failed to clone entity with GUID $this->guid", "ERROR");
-			return;
-		}
-
-		$metadata_array = get_metadata_for_entity($this->guid);
-
-		$this->attributes['guid'] = "";
-
-		$this->attributes['subtype'] = $orig_entity->getSubtype();
-
-		// copy metadata over to new entity - slightly convoluted due to
-		// handling of metadata arrays
-		if (is_array($metadata_array)) {
-			// create list of metadata names
-			$metadata_names = array();
-			foreach ($metadata_array as $metadata) {
-				$metadata_names[] = $metadata['name'];
-			}
-			// arrays are stored with multiple enties per name
-			$metadata_names = array_unique($metadata_names);
-
-			// move the metadata over
-			foreach ($metadata_names as $name) {
-				$this->set($name, $orig_entity->$name);
-			}
-		}
-	}
-
-	/**
-	 * Return the value of a property.
-	 *
-	 * If $name is defined in $this->attributes that value is returned, otherwise it will
-	 * pull from the entity's metadata.
-	 *
-	 * Q: Why are we not using __get overload here?
-	 * A: Because overload operators cause problems during subclassing, so we put the code here and
-	 * create overloads in subclasses.
-	 * @todo What problems are these?
-	 *
-	 * @warning Subtype is returned as an id rather than the subtype string. Use getSubtype()
-	 * to get the subtype string.
-	 *
-	 * @param string $name
-	 * @return mixed Returns the value of a given value, or null.
-	 */
-	public function get($name) {
-		// See if its in our base attributes
-		if (isset($this->attributes[$name])) {
-			return $this->attributes[$name];
-		}
-
-		// No, so see if its in the meta data for this entity
-		$meta = $this->getMetaData($name);
-
-		// getMetaData returns NULL if $name is not found
-		return $meta;
-	}
-
-	/**
-	 * Sets the value of a property.
-	 *
-	 * If $name is defined in $this->attributes that value is set, otherwise it will
-	 * set the appropriate item of metadata.
-	 *
-	 * @warning It is important that your class populates $this->attributes with keys for all base attributes, anything
-	 * not in their gets set as METADATA.
-	 *
-	 * Q: Why are we not using __set overload here?
-	 * A: Because overload operators cause problems during subclassing, so we put the code here and
-	 * create overloads in subclasses.
-	 * @todo What problems?
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 */
-	public function set($name, $value) {
-		if (array_key_exists($name, $this->attributes)) {
-			// Certain properties should not be manually changed!
-			switch ($name) {
-				case 'guid':
-				case 'time_created':
-				case 'time_updated':
-				case 'last_action':
-					return FALSE;
-					break;
-				default:
-					$this->attributes[$name] = $value;
-					break;
-			}
-		} else {
-			return $this->setMetaData($name, $value);
-		}
-
-		return TRUE;
-	}
-
-	/**
-	 * Return the value of a piece of metadata.
-	 *
-	 * @param string $name
-	 * @return mixed The value, or NULL if not found.
-	 */
-	public function getMetaData($name) {
-		if ((int) ($this->guid) > 0) {
-			$md = get_metadata_byname($this->getGUID(), $name);
-		} else {
-			if (isset($this->temp_metadata[$name])) {
-				return $this->temp_metadata[$name];
-			}
-		}
-
-		if ($md && !is_array($md)) {
-			return $md->value;
-		} else if ($md && is_array($md)) {
-			return metadata_array_to_values($md);
-		}
-
-		return null;
-	}
-
-	/**
-	 * Return an attribute or a piece of metadata.
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	function __get($name) {
-		return $this->get($name);
-	}
-
-	/**
-	 * Set an attribute or a piece of metadata.
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @return mixed
-	 */
-	function __set($name, $value) {
-		return $this->set($name, $value);
-	}
-
-	/**
-	 * Test if property is set either as an attribute or metadata.
-	 *
-	 * @tip Use isset($entity->property)
-	 *
-	 * @param string $name The name of the attribute or metadata.
-	 * @return bool
-	 */
-	function __isset($name) {
-		return $this->$name !== NULL;
-	}
-
-	/**
-	 * Unset a property from metadata or attribute.
-	 *
-	 * @warning If you use this to unset an attribute, you must save the object!
-	 *
-	 * @param string $name The name of the attribute or metadata.
-	 */
-	function __unset($name) {
-		if (array_key_exists($name, $this->attributes)) {
-			$this->attributes[$name] = "";
-		}
-		else {
-			$this->clearMetaData($name);
-		}
-	}
-
-	/**
-	 * Set a piece of metadata.
-	 *
-	 * @tip Plugin authors should use the magic methods.
-	 *
-	 * @access private
-	 * @param string $name Name of the metadata
-	 * @param mixed $value Value of the metadata
-	 * @param string $value_type Types supported: integer and string. Will auto-identify if not set
-	 * @param bool $multiple (does not support associative arrays)
-	 * @return bool
-	 */
-	public function setMetaData($name, $value, $value_type = "", $multiple = false) {
-		if (is_array($value)) {
-			unset($this->temp_metadata[$name]);
-			remove_metadata($this->getGUID(), $name);
-			foreach ($value as $v) {
-				if ((int) $this->guid > 0) {
-					$multiple = true;
-					if (!create_metadata($this->getGUID(), $name, $v, $value_type,
-					$this->getOwner(), $this->getAccessID(), $multiple)) {
-						return false;
-					}
-				} else {
-					if (($multiple) && (isset($this->temp_metadata[$name]))) {
-						if (!is_array($this->temp_metadata[$name])) {
-							$tmp = $this->temp_metadata[$name];
-							$this->temp_metadata[$name] = array();
-							$this->temp_metadata[$name][] = $tmp;
-						}
-
-						$this->temp_metadata[$name][] = $value;
-					}
-					else {
-						$this->temp_metadata[$name] = $value;
-					}
-				}
-			}
-
-			return true;
-		} else {
-			unset($this->temp_metadata[$name]);
-			if ((int) $this->guid > 0) {
-				$result = create_metadata($this->getGUID(), $name, $value, $value_type, $this->getOwner(), $this->getAccessID(), $multiple);
-				return (bool)$result;
-			} else {
-				if (($multiple) && (isset($this->temp_metadata[$name]))) {
-					if (!is_array($this->temp_metadata[$name])) {
-						$tmp = $this->temp_metadata[$name];
-						$this->temp_metadata[$name] = array();
-						$this->temp_metadata[$name][] = $tmp;
-					}
-
-					$this->temp_metadata[$name][] = $value;
-				}
-				else {
-					$this->temp_metadata[$name] = $value;
-				}
-
-				return true;
-			}
-		}
-	}
-
-	/**
-	 * Remove metadata
-	 *
-	 * @warning Calling this with no or empty arguments will clear all metadata on the entity.
-	 * @param string The name of the metadata to clear
-	 * @return mixed The n
-	 */
-	public function clearMetaData($name = "") {
-		if (empty($name)) {
-			return clear_metadata($this->getGUID());
-		} else {
-			return remove_metadata($this->getGUID(), $name);
-		}
-	}
-
-
-	/**
-	 * Get a piece of volatile (non-persisted) data on this entity.
-	 *
-	 * @param string $name The name of the volatile data
-	 * @return mixed The value or NULL if not found.
-	 */
-	public function getVolatileData($name) {
-		if (!is_array($this->volatile)) {
-			$this->volatile = array();
-		}
-
-		if (array_key_exists($name, $this->volatile)) {
-			return $this->volatile[$name];
-		} else {
-			return NULL;
-		}
-	}
-
-
-	/**
-	 * Set a piece of volatile (non-persisted) data on this entity
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 */
-	public function setVolatileData($name, $value) {
-		if (!is_array($this->volatile)) {
-			$this->volatile = array();
-		}
-
-		$this->volatile[$name] = $value;
-	}
-
-
-	/**
-	 * Remove all relationships to and from this entity.
-	 *
-	 * @return true
-	 * @todo This should actually return if it worked.
-	 * @see ElggEntity::addRelationship()
-	 * @see ElggEntity::removeRelationship()
-	 */
-	public function clearRelationships() {
-		remove_entity_relationships($this->getGUID());
-		remove_entity_relationships($this->getGUID(), "", true);
-		return true;
-	}
-
-	/**
-	 * Add a relationship between this an another entity.
-	 *
-	 * @tip Read the relationship like "$guid is a $relationship of this entity."
-	 *
-	 * @param int $guid Entity to link to.
-	 * @param string $relationship The type of relationship.
-	 * @return bool
-	 * @see ElggEntity::removeRelationship()
-	 * @see ElggEntity::clearRelationships()
-	 */
-	public function addRelationship($guid, $relationship) {
-		return add_entity_relationship($this->getGUID(), $relationship, $guid);
-	}
-
-	/**
-	 * Remove a relationship
-	 *
-	 * @param int $guid
-	 * @param str $relationship
-	 * @return bool
-	 * @see ElggEntity::addRelationship()
-	 * @see ElggEntity::clearRelationships()
-	 */
-	public function removeRelationship($guid, $relationship) {
-		return remove_entity_relationship($this->getGUID(), $relationship, $guid);
-	}
-
-	/**
-	 * Adds a private setting to this entity.
-	 *
-	 * Private settings are similar to metadata but will not
-	 * be searched and there are fewer helper functions for them.
-	 *
-	 * @param $name
-	 * @param $value
-	 * @return bool
-	 * @link http://docs.elgg.org/DataModel/Entities/PrivateSettings
-	 */
-	function setPrivateSetting($name, $value) {
-		return set_private_setting($this->getGUID(), $name, $value);
-	}
-
-	/**
-	 * Returns a private setting value
-	 *
-	 * @param $name
-	 * @return mixed
-	 */
-	function getPrivateSetting($name) {
-		return get_private_setting($this->getGUID(), $name);
-	}
-
-	/**
-	 * Removes private setting
-	 *
-	 * @param $name
-	 * @return bool
-	 */
-	function removePrivateSetting($name) {
-		return remove_private_setting($this->getGUID(), $name);
-	}
-
-	/**
-	 * Adds an annotation to an entity.
-	 *
-	 * @warning By default, annotations are private.
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @param int $access_id
-	 * @param int $owner_id
-	 * @param string $vartype
-	 * @link http://docs.elgg.org/DataModel/Annotations
-	 */
-	function annotate($name, $value, $access_id = ACCESS_PRIVATE, $owner_id = 0, $vartype = "") {
-		if ((int) $this->guid > 0) {
-			return create_annotation($this->getGUID(), $name, $value, $vartype, $owner_id, $access_id);
-		} else {
-			$this->temp_annotations[$name] = $value;
-		}
-		return true;
-	}
-
-	/**
-	 * Returns an array of annotations.
-	 *
-	 * @param string $name
-	 * @param int $limit
-	 * @param int $offset
-	 * @param string $order asc or desc
-	 * @return array
-	 */
-	function getAnnotations($name, $limit = 50, $offset = 0, $order="asc") {
-		if ((int) ($this->guid) > 0) {
-			return get_annotations($this->getGUID(), "", "", $name, "", 0, $limit, $offset, $order);
-		} else {
-			return $this->temp_annotations[$name];
-		}
-	}
-
-	/**
-	 * Remove an annotation or all annotations for this entity.
-	 *
-	 * @warning Calling this method with no or an empty argument will remove all annotations on the entity.
-	 *
-	 * @param string $name
-	 * @return bool
-	 */
-	function clearAnnotations($name = "") {
-		return clear_annotations($this->getGUID(), $name);
-	}
-
-	/**
-	 * Count annotations.
-	 *
-	 * @param string $name The type of annotation.
-	 * @return int
-	 */
-	function countAnnotations($name = "") {
-		return count_annotations($this->getGUID(), "", "", $name);
-	}
-
-	/**
-	 * Get the average of an integer type annotation.
-	 *
-	 * @param string $name
-	 * @return int
-	 */
-	function getAnnotationsAvg($name) {
-		return get_annotations_avg($this->getGUID(), "", "", $name);
-	}
-
-	/**
-	 * Get the sum of integer type annotations of a given name.
-	 *
-	 * @param string $name
-	 * @return int
-	 */
-	function getAnnotationsSum($name) {
-		return get_annotations_sum($this->getGUID(), "", "", $name);
-	}
-
-	/**
-	 * Get the minimum of integer type annotations of given name.
-	 *
-	 * @param string $name
-	 * @return int
-	 */
-	function getAnnotationsMin($name) {
-		return get_annotations_min($this->getGUID(), "", "", $name);
-	}
-
-	/**
-	 * Get the maximum of integer type annotations of a given name.
-	 *
-	 * @param string $name
-	 * @return int
-	 */
-	function getAnnotationsMax($name) {
-		return get_annotations_max($this->getGUID(), "", "", $name);
-	}
-
-	/**
-	 * Gets an array of entities with a relationship to this entity.
-	 *
-	 * @param string $relationship Relationship type (eg "friends")
-	 * @param true|false $inverse Is this an inverse relationship?
-	 * @param int $limit Number of elements to return
-	 * @param int $offset Indexing offset
-	 * @return array|false An array of entities or false on failure
-	 */
-	function getEntitiesFromRelationship($relationship, $inverse = false, $limit = 50, $offset = 0) {
-		return elgg_get_entities_from_relationship(array(
-			'relationship' => $relationship,
-			'relationship_guid' => $this->getGUID(),
-			'inverse_relationship' => $inverse,
-			'limit' => $limit,
-			'offset' => $offset
-		));
-	}
-
-	/**
-	 * Gets the number of of entities from a specific relationship type
-	 *
-	 * @param string $relationship Relationship type (eg "friends")
-	 * @param bool $inverse_relationship
-	 * @return int|false The number of entities or false on failure
-	 */
-	function countEntitiesFromRelationship($relationship, $inverse_relationship = FALSE) {
-		return elgg_get_entities_from_relationship(array(
-			'relationship' => $relationship,
-			'relationship_guid' => $this->getGUID(),
-			'inverse_relationship' => $inverse_relationship,
-			'count' => TRUE
-		));
-	}
-
-	/**
-	 * Can a user edit this entity.
-	 *
-	 * @param int $user_guid The user GUID, optionally (defaults to the currently logged in user)
-	 * @return true|false
-	 */
-	function canEdit($user_guid = 0) {
-		return can_edit_entity($this->getGUID(), $user_guid);
-	}
-
-	/**
-	 * Can a user edit metadata on this entity
-	 *
-	 * @param ElggMetadata $metadata The piece of metadata to specifically check
-	 * @param int $user_guid The user GUID, optionally (defaults to the currently logged in user)
-	 * @return true|false
-	 */
-	function canEditMetadata($metadata = null, $user_guid = 0) {
-		return can_edit_entity_metadata($this->getGUID(), $user_guid, $metadata);
-	}
-
-	/**
-	 * Can a user write to this entity's container.
-	 *
-	 * @param int $user_guid The user.
-	 * @return bool
-	 */
-	public function canWriteToContainer($user_guid = 0) {
-		return can_write_to_container($user_guid, $this->getGUID());
-	}
-
-	/**
-	 * Returns the access_id.
-	 *
-	 * @return int The access ID
-	 */
-	public function getAccessID() {
-		return $this->get('access_id');
-	}
-
-	/**
-	 * Returns the guid.
-	 *
-	 * @return int GUID
-	 */
-	public function getGUID() {
-		return $this->get('guid');
-	}
-
-	/**
-	 * Return the guid of the entity's owner.
-	 *
-	 * @return int The owner GUID
-	 */
-	public function getOwner() {
-		return $this->get('owner_guid');
-	}
-
-	/**
-	 * Returns the ElggEntity or child object of the owner of the entity.
-	 *
-	 * @return ElggEntity The owning user
-	 */
-	public function getOwnerEntity() {
-		return get_entity($this->get('owner_guid'));
-	}
-
-	/**
-	 * Returns the entity type
-	 *
-	 * @return string Entity type
-	 */
-	public function getType() {
-		return $this->get('type');
-	}
-
-	/**
-	 * Returns the entity subtype string
-	 *
-	 * @note This returns a string.  If you want the id, use ElggEntity::subtype.
-	 *
-	 * @return string The entity subtype
-	 */
-	public function getSubtype() {
-		// If this object hasn't been saved, then return the subtype string.
-		if (!((int) $this->guid > 0)) {
-			return $this->get('subtype');
-		}
-
-		return get_subtype_from_id($this->get('subtype'));
-	}
-
-	/**
-	 * Returns the UNIX epoch time that this entity was created
-	 *
-	 * @return int UNIX epoch time
-	 */
-	public function getTimeCreated() {
-		return $this->get('time_created');
-	}
-
-	/**
-	 * Returns the UNIX epoch time that this entity was last updated
-	 *
-	 * @return int UNIX epoch time
-	 */
-	public function getTimeUpdated() {
-		return $this->get('time_updated');
-	}
-
-	/**
-	 * Returns the URL for this entity
-	 *
-	 * @return string The URL
-	 * @see register_entity_url_handler()
-	 * @see ElggEntity::setURL()
-	 */
-	public function getURL() {
-		if (!empty($this->url_override)) {
-			return $this->url_override;
-		}
-		return get_entity_url($this->getGUID());
-	}
-
-	/**
-	 * Overrides the URL returned by getURL()
-	 *
-	 * @warning This override exists only for the life of the object.
-	 *
-	 * @param string $url The new item URL
-	 * @return string The URL
-	 */
-	public function setURL($url) {
-		$this->url_override = $url;
-		return $url;
-	}
-
-	/**
-	 * Returns a URL for the entity's icon.
-	 *
-	 * @param string $size Either 'large', 'medium', 'small' or 'tiny'
-	 * @return string The url or false if no url could be worked out.
-	 * @see get_entity_icon_url()
-	 */
-	public function getIcon($size = 'medium') {
-		if (isset($this->icon_override[$size])) {
-			return $this->icon_override[$size];
-		}
-		return get_entity_icon_url($this, $size);
-	}
-
-	/**
-	 * Set an icon override for an icon and size.
-	 *
-	 * @warning This override exists only for the life of the object.
-	 *
-	 * @param string $url The url of the icon.
-	 * @param string $size The size its for.
-	 * @return bool
-	 */
-	public function setIcon($url, $size = 'medium') {
-		$url = sanitise_string($url);
-		$size = sanitise_string($size);
-
-		if (!$this->icon_override) {
-			$this->icon_override = array();
-		}
-		$this->icon_override[$size] = $url;
-
-		return true;
-	}
-
-	/**
-	 * Tests to see whether the object has been fully loaded.
-	 *
-	 * @return bool
-	 */
-	public function isFullyLoaded() {
-		return ! ($this->attributes['tables_loaded'] < $this->attributes['tables_split']);
-	}
-
-	/**
-	 * Save attributes to the entities table.
-	 *
-	 * @return bool
-	 * @throws IOException
-	 */
-	public function save() {
-		$guid = (int) $this->guid;
-		if ($guid > 0) {
-			cache_entity($this);
-
-			return update_entity(
-				$this->get('guid'),
-				$this->get('owner_guid'),
-				$this->get('access_id'),
-				$this->get('container_guid')
-			);
-		} else {
-			// Create a new entity (nb: using attribute array directly 'cos set function does something special!)
-			$this->attributes['guid'] = create_entity($this->attributes['type'], $this->attributes['subtype'], $this->attributes['owner_guid'], $this->attributes['access_id'], $this->attributes['site_guid'], $this->attributes['container_guid']);
-			if (!$this->attributes['guid']) {
-				throw new IOException(elgg_echo('IOException:BaseEntitySaveFailed'));
-			}
-
-			// Save any unsaved metadata
-			// @todo How to capture extra information (access id etc)
-			if (sizeof($this->temp_metadata) > 0) {
-				foreach($this->temp_metadata as $name => $value) {
-					$this->$name = $value;
-					unset($this->temp_metadata[$name]);
-				}
-			}
-
-			// Save any unsaved annotations metadata.
-			// @todo How to capture extra information (access id etc)
-			if (sizeof($this->temp_annotations) > 0) {
-				foreach($this->temp_annotations as $name => $value) {
-					$this->annotate($name, $value);
-					unset($this->temp_annotations[$name]);
-				}
-			}
-
-			// set the subtype to id now rather than a string
-			$this->attributes['subtype'] = get_subtype_id($this->attributes['type'], $this->attributes['subtype']);
-
-			// Cache object handle
-			if ($this->attributes['guid']) {
-				cache_entity($this);
-			}
-
-			return $this->attributes['guid'];
-		}
-	}
-
-	/**
-	 * Loads attributes from the entities table into the object.
-	 *
-	 * @param int $guid
-	 * @return bool
-	 */
-	protected function load($guid) {
-		$row = get_entity_as_row($guid);
-
-		if ($row) {
-			// Create the array if necessary - all subclasses should test before creating
-			if (!is_array($this->attributes)) {
-				$this->attributes = array();
-			}
-
-			// Now put these into the attributes array as core values
-			$objarray = (array) $row;
-			foreach($objarray as $key => $value) {
-				$this->attributes[$key] = $value;
-			}
-
-			// Increment the portion counter
-			if (!$this->isFullyLoaded()) {
-				$this->attributes['tables_loaded']++;
-			}
-
-			// Cache object handle
-			if ($this->attributes['guid']) {
-				cache_entity($this);
-			}
-
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Disable this entity.
-	 *
-	 * Disabled entities are not returned by getter functions.
-	 * To enable an entity, use {@link enable_entity()}.
-	 *
-	 * Recursively disabling an entity will disable all entities
-	 * owned or contained by the parent entity.
-	 *
-	 * @internal Disabling an entity sets the 'enabled' column to 'no'.
-	 *
-	 * @param string $reason Optional reason
-	 * @param bool $recursive Recursively disable all contained entities?
-	 * @return bool
-	 * @see enable_entity()
-	 * @see ElggEntity::enable()
-	 */
-	public function disable($reason = "", $recursive = true) {
-		return disable_entity($this->get('guid'), $reason, $recursive);
-	}
-
-	/**
-	 * Enable an entity
-	 *
-	 * @warning Disabled entities can't be loaded unless
-	 * {@link access_show_hidden_entities(true)} has been called.
-	 *
-	 * @see enable_entity()
-	 * @see access_show_hiden_entities()
-	 * @return bool
-	 */
-	public function enable() {
-		return enable_entity($this->get('guid'));
-	}
-
-	/**
-	 * Is this entity enabled?
-	 *
-	 * @return boolean
-	 */
-	public function isEnabled() {
-		if ($this->enabled == 'yes') {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Delete this entity.
-	 *
-	 * @return bool
-	 */
-	public function delete() {
-		return delete_entity($this->get('guid'));
-	}
-
-	/*
-	 * LOCATABLE INTERFACE
-	 */
-
-	/**
-	 * Sets the 'location' metadata for the entity
-	 *
-	 * @todo Unimplemented
-	 * @param string $location
-	 * @return true
-	 */
-	public function setLocation($location) {
-		$location = sanitise_string($location);
-
-		$this->location = $location;
-
-		return true;
-	}
-
-	/**
-	 * Set latitude and longitude metadata tags for a given entity.
-	 *
-	 * @param float $lat
-	 * @param float $long
-	 * @return true
-	 * @todo Unimplemented
-	 */
-	public function setLatLong($lat, $long) {
-		$lat = sanitise_string($lat);
-		$long = sanitise_string($long);
-
-		$this->set('geo:lat', $lat);
-		$this->set('geo:long', $long);
-
-		return true;
-	}
-
-	/**
-	 * Return the entity's latitude.
-	 *
-	 * @return int
-	 * @todo Unimplemented
-	 */
-	public function getLatitude() {
-		return $this->get('geo:lat');
-	}
-
-	/**
-	 * Return the entity's longitude
-	 *
-	 * @return Int
-	 */
-	public function getLongitude() {
-		return $this->get('geo:long');
-	}
-
-	/**
-	 * Return the entity's location
-	 *
-	 * @return string
-	 */
-	public function getLocation() {
-		return $this->get('location');
-	}
-
-	/*
-	 * NOTABLE INTERFACE
-	 */
-
-	/**
-	 * Set the time and duration of an object
-	 *
-	 * @param int $hour If ommitted, now is assumed.
-	 * @param int $minute If ommitted, now is assumed.
-	 * @param int $second If ommitted, now is assumed.
-	 * @param int $day If ommitted, now is assumed.
-	 * @param int $month If ommitted, now is assumed.
-	 * @param int $year If ommitted, now is assumed.
-	 * @param int $duration Duration of event, remainder of the day is assumed.
-	 * @return true
-	 * @todo Unimplemented
-	 */
-	public function setCalendarTimeAndDuration($hour = NULL, $minute = NULL, $second = NULL, $day = NULL, $month = NULL, $year = NULL, $duration = NULL) {
-		$start = mktime($hour, $minute, $second, $month, $day, $year);
-		$end = $start + abs($duration);
-		if (!$duration) {
-			$end = get_day_end($day,$month,$year);
-		}
-
-		$this->calendar_start = $start;
-		$this->calendar_end = $end;
-
-		return true;
-	}
-
-	/**
-	 * Returns the start timestamp.
-	 *
-	 * @return int
-	 * @todo Unimplemented
-	 */
-	public function getCalendarStartTime() {
-		return (int)$this->calendar_start;
-	}
-
-	/**
-	 * Returns the end timestamp.
-	 *
-	 * @todo Unimplemented
-	 */
-	public function getCalendarEndTime() {
-		return (int)$this->calendar_end;
-	}
-
-	/*
-	 * EXPORTABLE INTERFACE
-	 */
-
-	/**
-	 * Returns an array of fields which can be exported.
-	 *
-	 * @return array
-	 */
-	public function getExportableValues() {
-		return array(
-			'guid',
-			'type',
-			'subtype',
-			'time_created',
-			'time_updated',
-			'container_guid',
-			'owner_guid',
-			'site_guid'
-		);
-	}
-
-	/**
-	 * Export this class into an array of ODD Elements containing all necessary fields.
-	 * Override if you wish to return more information than can be found in $this->attributes (shouldn't happen)
-	 *
-	 * @return array
-	 */
-	public function export() {
-		$tmp = array();
-
-		// Generate uuid
-		$uuid = guid_to_uuid($this->getGUID());
-
-		// Create entity
-		$odd = new ODDEntity(
-			$uuid,
-			$this->attributes['type'],
-			get_subtype_from_id($this->attributes['subtype'])
-		);
-
-		$tmp[] = $odd;
-
-		$exportable_values = $this->getExportableValues();
-
-		// Now add its attributes
-		foreach ($this->attributes as $k => $v) {
-			$meta = NULL;
-
-			if (in_array( $k, $exportable_values)) {
-				switch ($k) {
-					case 'guid' : 			// Dont use guid in OpenDD
-					case 'type' :			// Type and subtype already taken care of
-					case 'subtype' :
-					break;
-
-					case 'time_created' :	// Created = published
-						$odd->setAttribute('published', date("r", $v));
-					break;
-
-					case 'site_guid' : // Container
-						$k = 'site_uuid';
-						$v = guid_to_uuid($v);
-						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
-					break;
-
-					case 'container_guid' : // Container
-						$k = 'container_uuid';
-						$v = guid_to_uuid($v);
-						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
-					break;
-
-					case 'owner_guid' :			// Convert owner guid to uuid, this will be stored in metadata
-						$k = 'owner_uuid';
-						$v = guid_to_uuid($v);
-						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
-					break;
-
-					default :
-						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
-				}
-
-				// set the time of any metadata created
-				if ($meta) {
-					$meta->setAttribute('published', date("r",$this->time_created));
-					$tmp[] = $meta;
-				}
-			}
-		}
-
-		// Now we do something a bit special.
-		/*
-		 * This provides a rendered view of the entity to foreign sites.
-		 */
-
-		elgg_set_viewtype('default');
-		$view = elgg_view_entity($this, true);
-		elgg_set_viewtype();
-
-		$tmp[] = new ODDMetaData($uuid . "volatile/renderedentity/", $uuid, 'renderedentity', $view , 'volatile');
-
-		return $tmp;
-	}
-
-	/*
-	 * IMPORTABLE INTERFACE
-	 */
-
-	/**
-	 * Import data from an parsed ODD xml data array.
-	 *
-	 * @param array $data
-	 * @param int $version
-	 * @return true
-	 */
-	public function import(ODD $data) {
-		if (!($data instanceof ODDEntity)) {
-			throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnexpectedODDClass'));
-		}
-
-		// Set type and subtype
-		$this->attributes['type'] = $data->getAttribute('class');
-		$this->attributes['subtype'] = $data->getAttribute('subclass');
-
-		// Set owner
-		$this->attributes['owner_guid'] = get_loggedin_userid(); // Import as belonging to importer.
-
-		// Set time
-		$this->attributes['time_created'] = strtotime($data->getAttribute('published'));
-		$this->attributes['time_updated'] = time();
-
-		return true;
-	}
-
-	/*
-	 * SYSTEM LOG INTERFACE
-	 */
-
-	/**
-	 * Return an identification for the object for storage in the system log.
-	 * This id must be an integer.
-	 *
-	 * @return int
-	 */
-	public function getSystemLogID() {
-		return $this->getGUID();
-	}
-
-	/**
-	 * Return the class name of the object.
-	 */
-	public function getClassName() {
-		return get_class($this);
-	}
-
-	/**
-	 * For a given ID, return the object associated with it.
-	 * This is used by the river functionality primarily.
-	 *
-	 * This is useful for checking access permissions etc on objects.
-	 * @return guid
-	 */
-	public function getObjectFromID($id) {
-		return get_entity($id);
-	}
-
-	/**
-	 * Returns the GUID of the owner of this entity.
-	 *
-	 * @return int Owner guid
-	 */
-	public function getObjectOwnerGUID() {
-		return $this->owner_guid;
-	}
-
-	/**
-	 * Returns tags for this entity.
-	 *
-	 * @warning Tags must be registered by {@link elgg_register_tag_metadata_name()}.
-	 *
-	 * @param array $tag_names Optionally restrict by tag metadata names.
-	 * @return array
-	 */
-	public function getTags($tag_names = NULL) {
-		global $CONFIG;
-
-		if ($tag_names && !is_array($tag_names)) {
-			$tag_names = array($tag_names);
-		}
-
-		$valid_tags = elgg_get_registered_tag_metadata_names();
-		$entity_tags = array();
-
-		foreach ($valid_tags as $tag_name) {
-			if (is_array($tag_names) && !in_array($tag_name, $tag_names)) {
-				continue;
-			}
-
-			if ($tags = $this->$tag_name) {
-				// if a single tag, metadata returns a string.
-				// if multiple tags, metadata returns an array.
-				if (is_array($tags)) {
-					$entity_tags = array_merge($entity_tags, $tags);
-				} else {
-					$entity_tags[] = $tags;
-				}
-			}
-		}
-
-		return $entity_tags;
-	}
-
-	/*
-	 * ITERATOR INTERFACE
-	 */
-
-	/*
-	 * This lets an entity's attributes be displayed using foreach as a normal array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-	private $valid = FALSE;
-
-	function rewind() {
-		$this->valid = (FALSE !== reset($this->attributes));
-	}
-
-	function current() {
-		return current($this->attributes);
-	}
-
-	function key() {
-		return key($this->attributes);
-	}
-
-	function next() {
-		$this->valid = (FALSE !== next($this->attributes));
-	}
-
-	function valid() {
-		return $this->valid;
-	}
-
-	/*
-	 * ARRAY ACCESS INTERFACE
-	 */
-
-	/*
-	 * This lets an entity's attributes be accessed like an associative array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-	function offsetSet($key, $value) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			$this->attributes[$key] = $value;
-		}
-	}
-
-	function offsetGet($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			return $this->attributes[$key];
-		}
-	}
-
-	function offsetUnset($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			$this->attributes[$key] = ""; // Full unsetting is dangerious for our objects
-		}
-	}
-
-	function offsetExists($offset) {
-		return array_key_exists($offset, $this->attributes);
-	}
+<?php
+/**
+ * The parent class for all Elgg Entities.
+ *
+ * An ElggEntity is one of the basic data models in Elgg.  It is the primary
+ * means of storing and retrieving data from the database.  An ElggEntity
+ * represents one row of the entities table.
+ *
+ * The ElggEntity class handles CRUD operations for the entities table.
+ * ElggEntity should always be extended by another class to handle CRUD
+ * operations on the type-specific table.
+ *
+ * ElggEntity uses magic methods for get and set, so any property that isn't
+ * declared will be assumed to be metadata and written to the database
+ * as metadata on the object.  All children classes must declare which
+ * properties are columns of the type table or they will be assumed
+ * to be metadata.  See ElggObject::initialise_entities() for examples.
+ *
+ * Core supports 4 types of entities: ElggObject, ElggUser, ElggGroup, and
+ * ElggSite.
+ *
+ * @tip Most plugin authors will want to extend the ElggObject class
+ * instead of this class.
+ *
+ * @package Elgg.Core
+ * @subpackage DataMode.Entities
+ * @link http://docs.elgg.org/DataModel/ElggEntity
+ */
+abstract class ElggEntity implements
+	Notable,    // Calendar interface
+	Locatable,  // Geocoding interface
+	Exportable, // Allow export of data
+	Importable, // Allow import of data
+	Loggable,	// Can events related to this object class be logged
+	Iterator,	// Override foreach behaviour
+	ArrayAccess // Override for array access
+{
+	/**
+	 * The main attributes of an entity.
+	 * Blank entries for all database fields should be created by the constructor.
+	 * Subclasses should add to this in their constructors.
+	 * Any field not appearing in this will be viewed as a
+	 */
+	protected $attributes;
+
+	/**
+	 * If set, overrides the value of getURL()
+	 */
+	protected $url_override;
+
+	/**
+	 * Icon override, overrides the value of getIcon().
+	 */
+	protected $icon_override;
+
+	/**
+	 * Holds metadata until entity is saved.  Once the entity is saved, metadata are written immediately to the database.
+	 */
+	protected $temp_metadata;
+
+	/**
+	 * Holds annotations until entity is saved.  Once the entity is saved, annotations are written immediately to the database.
+	 */
+	protected $temp_annotations;
+
+
+	/**
+	 * Volatile data structure for this object, allows for storage of data
+	 * in-memory that isn't sync'd back to the metadata table.
+	 */
+	protected $volatile;
+
+	/**
+	 * Initialise the attributes array.
+	 *
+	 * This is vital to distinguish between metadata and base parameters.
+	 *
+	 * @return void
+	 */
+	protected function initialise_attributes() {
+		initialise_entity_cache();
+
+		// Create attributes array if not already created
+		if (!is_array($this->attributes)) {
+			$this->attributes = array();
+		}
+		if (!is_array($this->temp_metadata)) {
+			$this->temp_metadata = array();
+		}
+		if (!is_array($this->temp_annotations)) {
+			$this->temp_annotations = array();
+		}
+		if (!is_array($this->volatile)) {
+			$this->volatile = array();
+		}
+
+		$this->attributes['guid'] = "";
+		$this->attributes['type'] = "";
+		$this->attributes['subtype'] = "";
+
+		$this->attributes['owner_guid'] = get_loggedin_userid();
+		$this->attributes['container_guid'] = get_loggedin_userid();
+
+		$this->attributes['site_guid'] = 0;
+		$this->attributes['access_id'] = ACCESS_PRIVATE;
+		$this->attributes['time_created'] = "";
+		$this->attributes['time_updated'] = "";
+		$this->attributes['last_action'] = '';
+		$this->attributes['enabled'] = "yes";
+
+		// There now follows a bit of a hack
+		/* Problem: To speed things up, some objects are split over several tables, this means that it requires
+		 * n number of database reads to fully populate an entity. This causes problems for caching and create events
+		 * since it is not possible to tell whether a subclassed entity is complete.
+		 * Solution: We have two counters, one 'tables_split' which tells whatever is interested how many tables
+		 * are going to need to be searched in order to fully populate this object, and 'tables_loaded' which is how
+		 * many have been loaded thus far.
+		 * If the two are the same then this object is complete.
+		 *
+		 * Use: isFullyLoaded() to check
+		 */
+		$this->attributes['tables_split'] = 1;
+		$this->attributes['tables_loaded'] = 0;
+	}
+
+	/**
+	 * Clone an entity
+	 *
+	 * Resets the guid so that the entity can be saved as a distinct entity from
+	 * the original. Creation time will be set when this new entity is saved.
+	 * The owner and container guids come from the original entity. The clone
+	 * method copies metadata but does not copy annotations or private settings.
+	 *
+	 * @note metadata will have its owner and access id set when the entity is saved
+	 * and it will be the same as that of the entity.
+	 */
+	public function __clone() {
+		$orig_entity = get_entity($this->guid);
+		if (!$orig_entity) {
+			elgg_log("Failed to clone entity with GUID $this->guid", "ERROR");
+			return;
+		}
+
+		$metadata_array = get_metadata_for_entity($this->guid);
+
+		$this->attributes['guid'] = "";
+
+		$this->attributes['subtype'] = $orig_entity->getSubtype();
+
+		// copy metadata over to new entity - slightly convoluted due to
+		// handling of metadata arrays
+		if (is_array($metadata_array)) {
+			// create list of metadata names
+			$metadata_names = array();
+			foreach ($metadata_array as $metadata) {
+				$metadata_names[] = $metadata['name'];
+			}
+			// arrays are stored with multiple enties per name
+			$metadata_names = array_unique($metadata_names);
+
+			// move the metadata over
+			foreach ($metadata_names as $name) {
+				$this->set($name, $orig_entity->$name);
+			}
+		}
+	}
+
+	/**
+	 * Return the value of a property.
+	 *
+	 * If $name is defined in $this->attributes that value is returned, otherwise it will
+	 * pull from the entity's metadata.
+	 *
+	 * Q: Why are we not using __get overload here?
+	 * A: Because overload operators cause problems during subclassing, so we put the code here and
+	 * create overloads in subclasses.
+	 * @todo What problems are these?
+	 *
+	 * @warning Subtype is returned as an id rather than the subtype string. Use getSubtype()
+	 * to get the subtype string.
+	 *
+	 * @param string $name
+	 * @return mixed Returns the value of a given value, or null.
+	 */
+	public function get($name) {
+		// See if its in our base attributes
+		if (isset($this->attributes[$name])) {
+			return $this->attributes[$name];
+		}
+
+		// No, so see if its in the meta data for this entity
+		$meta = $this->getMetaData($name);
+
+		// getMetaData returns NULL if $name is not found
+		return $meta;
+	}
+
+	/**
+	 * Sets the value of a property.
+	 *
+	 * If $name is defined in $this->attributes that value is set, otherwise it will
+	 * set the appropriate item of metadata.
+	 *
+	 * @warning It is important that your class populates $this->attributes with keys for all base attributes, anything
+	 * not in their gets set as METADATA.
+	 *
+	 * Q: Why are we not using __set overload here?
+	 * A: Because overload operators cause problems during subclassing, so we put the code here and
+	 * create overloads in subclasses.
+	 * @todo What problems?
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 */
+	public function set($name, $value) {
+		if (array_key_exists($name, $this->attributes)) {
+			// Certain properties should not be manually changed!
+			switch ($name) {
+				case 'guid':
+				case 'time_created':
+				case 'time_updated':
+				case 'last_action':
+					return FALSE;
+					break;
+				default:
+					$this->attributes[$name] = $value;
+					break;
+			}
+		} else {
+			return $this->setMetaData($name, $value);
+		}
+
+		return TRUE;
+	}
+
+	/**
+	 * Return the value of a piece of metadata.
+	 *
+	 * @param string $name
+	 * @return mixed The value, or NULL if not found.
+	 */
+	public function getMetaData($name) {
+		if ((int) ($this->guid) > 0) {
+			$md = get_metadata_byname($this->getGUID(), $name);
+		} else {
+			if (isset($this->temp_metadata[$name])) {
+				return $this->temp_metadata[$name];
+			}
+		}
+
+		if ($md && !is_array($md)) {
+			return $md->value;
+		} else if ($md && is_array($md)) {
+			return metadata_array_to_values($md);
+		}
+
+		return null;
+	}
+
+	/**
+	 * Return an attribute or a piece of metadata.
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	function __get($name) {
+		return $this->get($name);
+	}
+
+	/**
+	 * Set an attribute or a piece of metadata.
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @return mixed
+	 */
+	function __set($name, $value) {
+		return $this->set($name, $value);
+	}
+
+	/**
+	 * Test if property is set either as an attribute or metadata.
+	 *
+	 * @tip Use isset($entity->property)
+	 *
+	 * @param string $name The name of the attribute or metadata.
+	 * @return bool
+	 */
+	function __isset($name) {
+		return $this->$name !== NULL;
+	}
+
+	/**
+	 * Unset a property from metadata or attribute.
+	 *
+	 * @warning If you use this to unset an attribute, you must save the object!
+	 *
+	 * @param string $name The name of the attribute or metadata.
+	 */
+	function __unset($name) {
+		if (array_key_exists($name, $this->attributes)) {
+			$this->attributes[$name] = "";
+		}
+		else {
+			$this->clearMetaData($name);
+		}
+	}
+
+	/**
+	 * Set a piece of metadata.
+	 *
+	 * @tip Plugin authors should use the magic methods.
+	 *
+	 * @access private
+	 * @param string $name Name of the metadata
+	 * @param mixed $value Value of the metadata
+	 * @param string $value_type Types supported: integer and string. Will auto-identify if not set
+	 * @param bool $multiple (does not support associative arrays)
+	 * @return bool
+	 */
+	public function setMetaData($name, $value, $value_type = "", $multiple = false) {
+		if (is_array($value)) {
+			unset($this->temp_metadata[$name]);
+			remove_metadata($this->getGUID(), $name);
+			foreach ($value as $v) {
+				if ((int) $this->guid > 0) {
+					$multiple = true;
+					if (!create_metadata($this->getGUID(), $name, $v, $value_type,
+					$this->getOwner(), $this->getAccessID(), $multiple)) {
+						return false;
+					}
+				} else {
+					if (($multiple) && (isset($this->temp_metadata[$name]))) {
+						if (!is_array($this->temp_metadata[$name])) {
+							$tmp = $this->temp_metadata[$name];
+							$this->temp_metadata[$name] = array();
+							$this->temp_metadata[$name][] = $tmp;
+						}
+
+						$this->temp_metadata[$name][] = $value;
+					}
+					else {
+						$this->temp_metadata[$name] = $value;
+					}
+				}
+			}
+
+			return true;
+		} else {
+			unset($this->temp_metadata[$name]);
+			if ((int) $this->guid > 0) {
+				$result = create_metadata($this->getGUID(), $name, $value, $value_type, $this->getOwner(), $this->getAccessID(), $multiple);
+				return (bool)$result;
+			} else {
+				if (($multiple) && (isset($this->temp_metadata[$name]))) {
+					if (!is_array($this->temp_metadata[$name])) {
+						$tmp = $this->temp_metadata[$name];
+						$this->temp_metadata[$name] = array();
+						$this->temp_metadata[$name][] = $tmp;
+					}
+
+					$this->temp_metadata[$name][] = $value;
+				}
+				else {
+					$this->temp_metadata[$name] = $value;
+				}
+
+				return true;
+			}
+		}
+	}
+
+	/**
+	 * Remove metadata
+	 *
+	 * @warning Calling this with no or empty arguments will clear all metadata on the entity.
+	 * @param string The name of the metadata to clear
+	 * @return mixed The n
+	 */
+	public function clearMetaData($name = "") {
+		if (empty($name)) {
+			return clear_metadata($this->getGUID());
+		} else {
+			return remove_metadata($this->getGUID(), $name);
+		}
+	}
+
+
+	/**
+	 * Get a piece of volatile (non-persisted) data on this entity.
+	 *
+	 * @param string $name The name of the volatile data
+	 * @return mixed The value or NULL if not found.
+	 */
+	public function getVolatileData($name) {
+		if (!is_array($this->volatile)) {
+			$this->volatile = array();
+		}
+
+		if (array_key_exists($name, $this->volatile)) {
+			return $this->volatile[$name];
+		} else {
+			return NULL;
+		}
+	}
+
+
+	/**
+	 * Set a piece of volatile (non-persisted) data on this entity
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 */
+	public function setVolatileData($name, $value) {
+		if (!is_array($this->volatile)) {
+			$this->volatile = array();
+		}
+
+		$this->volatile[$name] = $value;
+	}
+
+
+	/**
+	 * Remove all relationships to and from this entity.
+	 *
+	 * @return true
+	 * @todo This should actually return if it worked.
+	 * @see ElggEntity::addRelationship()
+	 * @see ElggEntity::removeRelationship()
+	 */
+	public function clearRelationships() {
+		remove_entity_relationships($this->getGUID());
+		remove_entity_relationships($this->getGUID(), "", true);
+		return true;
+	}
+
+	/**
+	 * Add a relationship between this an another entity.
+	 *
+	 * @tip Read the relationship like "$guid is a $relationship of this entity."
+	 *
+	 * @param int $guid Entity to link to.
+	 * @param string $relationship The type of relationship.
+	 * @return bool
+	 * @see ElggEntity::removeRelationship()
+	 * @see ElggEntity::clearRelationships()
+	 */
+	public function addRelationship($guid, $relationship) {
+		return add_entity_relationship($this->getGUID(), $relationship, $guid);
+	}
+
+	/**
+	 * Remove a relationship
+	 *
+	 * @param int $guid
+	 * @param str $relationship
+	 * @return bool
+	 * @see ElggEntity::addRelationship()
+	 * @see ElggEntity::clearRelationships()
+	 */
+	public function removeRelationship($guid, $relationship) {
+		return remove_entity_relationship($this->getGUID(), $relationship, $guid);
+	}
+
+	/**
+	 * Adds a private setting to this entity.
+	 *
+	 * Private settings are similar to metadata but will not
+	 * be searched and there are fewer helper functions for them.
+	 *
+	 * @param $name
+	 * @param $value
+	 * @return bool
+	 * @link http://docs.elgg.org/DataModel/Entities/PrivateSettings
+	 */
+	function setPrivateSetting($name, $value) {
+		return set_private_setting($this->getGUID(), $name, $value);
+	}
+
+	/**
+	 * Returns a private setting value
+	 *
+	 * @param $name
+	 * @return mixed
+	 */
+	function getPrivateSetting($name) {
+		return get_private_setting($this->getGUID(), $name);
+	}
+
+	/**
+	 * Removes private setting
+	 *
+	 * @param $name
+	 * @return bool
+	 */
+	function removePrivateSetting($name) {
+		return remove_private_setting($this->getGUID(), $name);
+	}
+
+	/**
+	 * Adds an annotation to an entity.
+	 *
+	 * @warning By default, annotations are private.
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @param int $access_id
+	 * @param int $owner_id
+	 * @param string $vartype
+	 * @link http://docs.elgg.org/DataModel/Annotations
+	 */
+	function annotate($name, $value, $access_id = ACCESS_PRIVATE, $owner_id = 0, $vartype = "") {
+		if ((int) $this->guid > 0) {
+			return create_annotation($this->getGUID(), $name, $value, $vartype, $owner_id, $access_id);
+		} else {
+			$this->temp_annotations[$name] = $value;
+		}
+		return true;
+	}
+
+	/**
+	 * Returns an array of annotations.
+	 *
+	 * @param string $name
+	 * @param int $limit
+	 * @param int $offset
+	 * @param string $order asc or desc
+	 * @return array
+	 */
+	function getAnnotations($name, $limit = 50, $offset = 0, $order="asc") {
+		if ((int) ($this->guid) > 0) {
+			return get_annotations($this->getGUID(), "", "", $name, "", 0, $limit, $offset, $order);
+		} else {
+			return $this->temp_annotations[$name];
+		}
+	}
+
+	/**
+	 * Remove an annotation or all annotations for this entity.
+	 *
+	 * @warning Calling this method with no or an empty argument will remove all annotations on the entity.
+	 *
+	 * @param string $name
+	 * @return bool
+	 */
+	function clearAnnotations($name = "") {
+		return clear_annotations($this->getGUID(), $name);
+	}
+
+	/**
+	 * Count annotations.
+	 *
+	 * @param string $name The type of annotation.
+	 * @return int
+	 */
+	function countAnnotations($name = "") {
+		return count_annotations($this->getGUID(), "", "", $name);
+	}
+
+	/**
+	 * Get the average of an integer type annotation.
+	 *
+	 * @param string $name
+	 * @return int
+	 */
+	function getAnnotationsAvg($name) {
+		return get_annotations_avg($this->getGUID(), "", "", $name);
+	}
+
+	/**
+	 * Get the sum of integer type annotations of a given name.
+	 *
+	 * @param string $name
+	 * @return int
+	 */
+	function getAnnotationsSum($name) {
+		return get_annotations_sum($this->getGUID(), "", "", $name);
+	}
+
+	/**
+	 * Get the minimum of integer type annotations of given name.
+	 *
+	 * @param string $name
+	 * @return int
+	 */
+	function getAnnotationsMin($name) {
+		return get_annotations_min($this->getGUID(), "", "", $name);
+	}
+
+	/**
+	 * Get the maximum of integer type annotations of a given name.
+	 *
+	 * @param string $name
+	 * @return int
+	 */
+	function getAnnotationsMax($name) {
+		return get_annotations_max($this->getGUID(), "", "", $name);
+	}
+
+	/**
+	 * Gets an array of entities with a relationship to this entity.
+	 *
+	 * @param string $relationship Relationship type (eg "friends")
+	 * @param true|false $inverse Is this an inverse relationship?
+	 * @param int $limit Number of elements to return
+	 * @param int $offset Indexing offset
+	 * @return array|false An array of entities or false on failure
+	 */
+	function getEntitiesFromRelationship($relationship, $inverse = false, $limit = 50, $offset = 0) {
+		return elgg_get_entities_from_relationship(array(
+			'relationship' => $relationship,
+			'relationship_guid' => $this->getGUID(),
+			'inverse_relationship' => $inverse,
+			'limit' => $limit,
+			'offset' => $offset
+		));
+	}
+
+	/**
+	 * Gets the number of of entities from a specific relationship type
+	 *
+	 * @param string $relationship Relationship type (eg "friends")
+	 * @param bool $inverse_relationship
+	 * @return int|false The number of entities or false on failure
+	 */
+	function countEntitiesFromRelationship($relationship, $inverse_relationship = FALSE) {
+		return elgg_get_entities_from_relationship(array(
+			'relationship' => $relationship,
+			'relationship_guid' => $this->getGUID(),
+			'inverse_relationship' => $inverse_relationship,
+			'count' => TRUE
+		));
+	}
+
+	/**
+	 * Can a user edit this entity.
+	 *
+	 * @param int $user_guid The user GUID, optionally (defaults to the currently logged in user)
+	 * @return true|false
+	 */
+	function canEdit($user_guid = 0) {
+		return can_edit_entity($this->getGUID(), $user_guid);
+	}
+
+	/**
+	 * Can a user edit metadata on this entity
+	 *
+	 * @param ElggMetadata $metadata The piece of metadata to specifically check
+	 * @param int $user_guid The user GUID, optionally (defaults to the currently logged in user)
+	 * @return true|false
+	 */
+	function canEditMetadata($metadata = null, $user_guid = 0) {
+		return can_edit_entity_metadata($this->getGUID(), $user_guid, $metadata);
+	}
+
+	/**
+	 * Can a user write to this entity's container.
+	 *
+	 * @param int $user_guid The user.
+	 * @return bool
+	 */
+	public function canWriteToContainer($user_guid = 0) {
+		return can_write_to_container($user_guid, $this->getGUID());
+	}
+
+	/**
+	 * Returns the access_id.
+	 *
+	 * @return int The access ID
+	 */
+	public function getAccessID() {
+		return $this->get('access_id');
+	}
+
+	/**
+	 * Returns the guid.
+	 *
+	 * @return int GUID
+	 */
+	public function getGUID() {
+		return $this->get('guid');
+	}
+
+	/**
+	 * Return the guid of the entity's owner.
+	 *
+	 * @return int The owner GUID
+	 */
+	public function getOwner() {
+		return $this->get('owner_guid');
+	}
+
+	/**
+	 * Returns the ElggEntity or child object of the owner of the entity.
+	 *
+	 * @return ElggEntity The owning user
+	 */
+	public function getOwnerEntity() {
+		return get_entity($this->get('owner_guid'));
+	}
+
+	/**
+	 * Returns the entity type
+	 *
+	 * @return string Entity type
+	 */
+	public function getType() {
+		return $this->get('type');
+	}
+
+	/**
+	 * Returns the entity subtype string
+	 *
+	 * @note This returns a string.  If you want the id, use ElggEntity::subtype.
+	 *
+	 * @return string The entity subtype
+	 */
+	public function getSubtype() {
+		// If this object hasn't been saved, then return the subtype string.
+		if (!((int) $this->guid > 0)) {
+			return $this->get('subtype');
+		}
+
+		return get_subtype_from_id($this->get('subtype'));
+	}
+
+	/**
+	 * Returns the UNIX epoch time that this entity was created
+	 *
+	 * @return int UNIX epoch time
+	 */
+	public function getTimeCreated() {
+		return $this->get('time_created');
+	}
+
+	/**
+	 * Returns the UNIX epoch time that this entity was last updated
+	 *
+	 * @return int UNIX epoch time
+	 */
+	public function getTimeUpdated() {
+		return $this->get('time_updated');
+	}
+
+	/**
+	 * Returns the URL for this entity
+	 *
+	 * @return string The URL
+	 * @see register_entity_url_handler()
+	 * @see ElggEntity::setURL()
+	 */
+	public function getURL() {
+		if (!empty($this->url_override)) {
+			return $this->url_override;
+		}
+		return get_entity_url($this->getGUID());
+	}
+
+	/**
+	 * Overrides the URL returned by getURL()
+	 *
+	 * @warning This override exists only for the life of the object.
+	 *
+	 * @param string $url The new item URL
+	 * @return string The URL
+	 */
+	public function setURL($url) {
+		$this->url_override = $url;
+		return $url;
+	}
+
+	/**
+	 * Returns a URL for the entity's icon.
+	 *
+	 * @param string $size Either 'large', 'medium', 'small' or 'tiny'
+	 * @return string The url or false if no url could be worked out.
+	 * @see get_entity_icon_url()
+	 */
+	public function getIcon($size = 'medium') {
+		if (isset($this->icon_override[$size])) {
+			return $this->icon_override[$size];
+		}
+		return get_entity_icon_url($this, $size);
+	}
+
+	/**
+	 * Set an icon override for an icon and size.
+	 *
+	 * @warning This override exists only for the life of the object.
+	 *
+	 * @param string $url The url of the icon.
+	 * @param string $size The size its for.
+	 * @return bool
+	 */
+	public function setIcon($url, $size = 'medium') {
+		$url = sanitise_string($url);
+		$size = sanitise_string($size);
+
+		if (!$this->icon_override) {
+			$this->icon_override = array();
+		}
+		$this->icon_override[$size] = $url;
+
+		return true;
+	}
+
+	/**
+	 * Tests to see whether the object has been fully loaded.
+	 *
+	 * @return bool
+	 */
+	public function isFullyLoaded() {
+		return ! ($this->attributes['tables_loaded'] < $this->attributes['tables_split']);
+	}
+
+	/**
+	 * Save attributes to the entities table.
+	 *
+	 * @return bool
+	 * @throws IOException
+	 */
+	public function save() {
+		$guid = (int) $this->guid;
+		if ($guid > 0) {
+			cache_entity($this);
+
+			return update_entity(
+				$this->get('guid'),
+				$this->get('owner_guid'),
+				$this->get('access_id'),
+				$this->get('container_guid')
+			);
+		} else {
+			// Create a new entity (nb: using attribute array directly 'cos set function does something special!)
+			$this->attributes['guid'] = create_entity($this->attributes['type'], $this->attributes['subtype'], $this->attributes['owner_guid'], $this->attributes['access_id'], $this->attributes['site_guid'], $this->attributes['container_guid']);
+			if (!$this->attributes['guid']) {
+				throw new IOException(elgg_echo('IOException:BaseEntitySaveFailed'));
+			}
+
+			// Save any unsaved metadata
+			// @todo How to capture extra information (access id etc)
+			if (sizeof($this->temp_metadata) > 0) {
+				foreach($this->temp_metadata as $name => $value) {
+					$this->$name = $value;
+					unset($this->temp_metadata[$name]);
+				}
+			}
+
+			// Save any unsaved annotations metadata.
+			// @todo How to capture extra information (access id etc)
+			if (sizeof($this->temp_annotations) > 0) {
+				foreach($this->temp_annotations as $name => $value) {
+					$this->annotate($name, $value);
+					unset($this->temp_annotations[$name]);
+				}
+			}
+
+			// set the subtype to id now rather than a string
+			$this->attributes['subtype'] = get_subtype_id($this->attributes['type'], $this->attributes['subtype']);
+
+			// Cache object handle
+			if ($this->attributes['guid']) {
+				cache_entity($this);
+			}
+
+			return $this->attributes['guid'];
+		}
+	}
+
+	/**
+	 * Loads attributes from the entities table into the object.
+	 *
+	 * @param int $guid
+	 * @return bool
+	 */
+	protected function load($guid) {
+		$row = get_entity_as_row($guid);
+
+		if ($row) {
+			// Create the array if necessary - all subclasses should test before creating
+			if (!is_array($this->attributes)) {
+				$this->attributes = array();
+			}
+
+			// Now put these into the attributes array as core values
+			$objarray = (array) $row;
+			foreach($objarray as $key => $value) {
+				$this->attributes[$key] = $value;
+			}
+
+			// Increment the portion counter
+			if (!$this->isFullyLoaded()) {
+				$this->attributes['tables_loaded']++;
+			}
+
+			// Cache object handle
+			if ($this->attributes['guid']) {
+				cache_entity($this);
+			}
+
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Disable this entity.
+	 *
+	 * Disabled entities are not returned by getter functions.
+	 * To enable an entity, use {@link enable_entity()}.
+	 *
+	 * Recursively disabling an entity will disable all entities
+	 * owned or contained by the parent entity.
+	 *
+	 * @internal Disabling an entity sets the 'enabled' column to 'no'.
+	 *
+	 * @param string $reason Optional reason
+	 * @param bool $recursive Recursively disable all contained entities?
+	 * @return bool
+	 * @see enable_entity()
+	 * @see ElggEntity::enable()
+	 */
+	public function disable($reason = "", $recursive = true) {
+		return disable_entity($this->get('guid'), $reason, $recursive);
+	}
+
+	/**
+	 * Enable an entity
+	 *
+	 * @warning Disabled entities can't be loaded unless
+	 * {@link access_show_hidden_entities(true)} has been called.
+	 *
+	 * @see enable_entity()
+	 * @see access_show_hiden_entities()
+	 * @return bool
+	 */
+	public function enable() {
+		return enable_entity($this->get('guid'));
+	}
+
+	/**
+	 * Is this entity enabled?
+	 *
+	 * @return boolean
+	 */
+	public function isEnabled() {
+		if ($this->enabled == 'yes') {
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Delete this entity.
+	 *
+	 * @return bool
+	 */
+	public function delete() {
+		return delete_entity($this->get('guid'));
+	}
+
+	/*
+	 * LOCATABLE INTERFACE
+	 */
+
+	/**
+	 * Sets the 'location' metadata for the entity
+	 *
+	 * @todo Unimplemented
+	 * @param string $location
+	 * @return true
+	 */
+	public function setLocation($location) {
+		$location = sanitise_string($location);
+
+		$this->location = $location;
+
+		return true;
+	}
+
+	/**
+	 * Set latitude and longitude metadata tags for a given entity.
+	 *
+	 * @param float $lat
+	 * @param float $long
+	 * @return true
+	 * @todo Unimplemented
+	 */
+	public function setLatLong($lat, $long) {
+		$lat = sanitise_string($lat);
+		$long = sanitise_string($long);
+
+		$this->set('geo:lat', $lat);
+		$this->set('geo:long', $long);
+
+		return true;
+	}
+
+	/**
+	 * Return the entity's latitude.
+	 *
+	 * @return int
+	 * @todo Unimplemented
+	 */
+	public function getLatitude() {
+		return $this->get('geo:lat');
+	}
+
+	/**
+	 * Return the entity's longitude
+	 *
+	 * @return Int
+	 */
+	public function getLongitude() {
+		return $this->get('geo:long');
+	}
+
+	/**
+	 * Return the entity's location
+	 *
+	 * @return string
+	 */
+	public function getLocation() {
+		return $this->get('location');
+	}
+
+	/*
+	 * NOTABLE INTERFACE
+	 */
+
+	/**
+	 * Set the time and duration of an object
+	 *
+	 * @param int $hour If ommitted, now is assumed.
+	 * @param int $minute If ommitted, now is assumed.
+	 * @param int $second If ommitted, now is assumed.
+	 * @param int $day If ommitted, now is assumed.
+	 * @param int $month If ommitted, now is assumed.
+	 * @param int $year If ommitted, now is assumed.
+	 * @param int $duration Duration of event, remainder of the day is assumed.
+	 * @return true
+	 * @todo Unimplemented
+	 */
+	public function setCalendarTimeAndDuration($hour = NULL, $minute = NULL, $second = NULL, $day = NULL, $month = NULL, $year = NULL, $duration = NULL) {
+		$start = mktime($hour, $minute, $second, $month, $day, $year);
+		$end = $start + abs($duration);
+		if (!$duration) {
+			$end = get_day_end($day,$month,$year);
+		}
+
+		$this->calendar_start = $start;
+		$this->calendar_end = $end;
+
+		return true;
+	}
+
+	/**
+	 * Returns the start timestamp.
+	 *
+	 * @return int
+	 * @todo Unimplemented
+	 */
+	public function getCalendarStartTime() {
+		return (int)$this->calendar_start;
+	}
+
+	/**
+	 * Returns the end timestamp.
+	 *
+	 * @todo Unimplemented
+	 */
+	public function getCalendarEndTime() {
+		return (int)$this->calendar_end;
+	}
+
+	/*
+	 * EXPORTABLE INTERFACE
+	 */
+
+	/**
+	 * Returns an array of fields which can be exported.
+	 *
+	 * @return array
+	 */
+	public function getExportableValues() {
+		return array(
+			'guid',
+			'type',
+			'subtype',
+			'time_created',
+			'time_updated',
+			'container_guid',
+			'owner_guid',
+			'site_guid'
+		);
+	}
+
+	/**
+	 * Export this class into an array of ODD Elements containing all necessary fields.
+	 * Override if you wish to return more information than can be found in $this->attributes (shouldn't happen)
+	 *
+	 * @return array
+	 */
+	public function export() {
+		$tmp = array();
+
+		// Generate uuid
+		$uuid = guid_to_uuid($this->getGUID());
+
+		// Create entity
+		$odd = new ODDEntity(
+			$uuid,
+			$this->attributes['type'],
+			get_subtype_from_id($this->attributes['subtype'])
+		);
+
+		$tmp[] = $odd;
+
+		$exportable_values = $this->getExportableValues();
+
+		// Now add its attributes
+		foreach ($this->attributes as $k => $v) {
+			$meta = NULL;
+
+			if (in_array( $k, $exportable_values)) {
+				switch ($k) {
+					case 'guid' : 			// Dont use guid in OpenDD
+					case 'type' :			// Type and subtype already taken care of
+					case 'subtype' :
+					break;
+
+					case 'time_created' :	// Created = published
+						$odd->setAttribute('published', date("r", $v));
+					break;
+
+					case 'site_guid' : // Container
+						$k = 'site_uuid';
+						$v = guid_to_uuid($v);
+						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
+					break;
+
+					case 'container_guid' : // Container
+						$k = 'container_uuid';
+						$v = guid_to_uuid($v);
+						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
+					break;
+
+					case 'owner_guid' :			// Convert owner guid to uuid, this will be stored in metadata
+						$k = 'owner_uuid';
+						$v = guid_to_uuid($v);
+						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
+					break;
+
+					default :
+						$meta = new ODDMetaData($uuid . "attr/$k/", $uuid, $k, $v);
+				}
+
+				// set the time of any metadata created
+				if ($meta) {
+					$meta->setAttribute('published', date("r",$this->time_created));
+					$tmp[] = $meta;
+				}
+			}
+		}
+
+		// Now we do something a bit special.
+		/*
+		 * This provides a rendered view of the entity to foreign sites.
+		 */
+
+		elgg_set_viewtype('default');
+		$view = elgg_view_entity($this, true);
+		elgg_set_viewtype();
+
+		$tmp[] = new ODDMetaData($uuid . "volatile/renderedentity/", $uuid, 'renderedentity', $view , 'volatile');
+
+		return $tmp;
+	}
+
+	/*
+	 * IMPORTABLE INTERFACE
+	 */
+
+	/**
+	 * Import data from an parsed ODD xml data array.
+	 *
+	 * @param array $data
+	 * @param int $version
+	 * @return true
+	 */
+	public function import(ODD $data) {
+		if (!($data instanceof ODDEntity)) {
+			throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnexpectedODDClass'));
+		}
+
+		// Set type and subtype
+		$this->attributes['type'] = $data->getAttribute('class');
+		$this->attributes['subtype'] = $data->getAttribute('subclass');
+
+		// Set owner
+		$this->attributes['owner_guid'] = get_loggedin_userid(); // Import as belonging to importer.
+
+		// Set time
+		$this->attributes['time_created'] = strtotime($data->getAttribute('published'));
+		$this->attributes['time_updated'] = time();
+
+		return true;
+	}
+
+	/*
+	 * SYSTEM LOG INTERFACE
+	 */
+
+	/**
+	 * Return an identification for the object for storage in the system log.
+	 * This id must be an integer.
+	 *
+	 * @return int
+	 */
+	public function getSystemLogID() {
+		return $this->getGUID();
+	}
+
+	/**
+	 * Return the class name of the object.
+	 */
+	public function getClassName() {
+		return get_class($this);
+	}
+
+	/**
+	 * For a given ID, return the object associated with it.
+	 * This is used by the river functionality primarily.
+	 *
+	 * This is useful for checking access permissions etc on objects.
+	 * @return guid
+	 */
+	public function getObjectFromID($id) {
+		return get_entity($id);
+	}
+
+	/**
+	 * Returns the GUID of the owner of this entity.
+	 *
+	 * @return int Owner guid
+	 */
+	public function getObjectOwnerGUID() {
+		return $this->owner_guid;
+	}
+
+	/**
+	 * Returns tags for this entity.
+	 *
+	 * @warning Tags must be registered by {@link elgg_register_tag_metadata_name()}.
+	 *
+	 * @param array $tag_names Optionally restrict by tag metadata names.
+	 * @return array
+	 */
+	public function getTags($tag_names = NULL) {
+		global $CONFIG;
+
+		if ($tag_names && !is_array($tag_names)) {
+			$tag_names = array($tag_names);
+		}
+
+		$valid_tags = elgg_get_registered_tag_metadata_names();
+		$entity_tags = array();
+
+		foreach ($valid_tags as $tag_name) {
+			if (is_array($tag_names) && !in_array($tag_name, $tag_names)) {
+				continue;
+			}
+
+			if ($tags = $this->$tag_name) {
+				// if a single tag, metadata returns a string.
+				// if multiple tags, metadata returns an array.
+				if (is_array($tags)) {
+					$entity_tags = array_merge($entity_tags, $tags);
+				} else {
+					$entity_tags[] = $tags;
+				}
+			}
+		}
+
+		return $entity_tags;
+	}
+
+	/*
+	 * ITERATOR INTERFACE
+	 */
+
+	/*
+	 * This lets an entity's attributes be displayed using foreach as a normal array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+	private $valid = FALSE;
+
+	function rewind() {
+		$this->valid = (FALSE !== reset($this->attributes));
+	}
+
+	function current() {
+		return current($this->attributes);
+	}
+
+	function key() {
+		return key($this->attributes);
+	}
+
+	function next() {
+		$this->valid = (FALSE !== next($this->attributes));
+	}
+
+	function valid() {
+		return $this->valid;
+	}
+
+	/*
+	 * ARRAY ACCESS INTERFACE
+	 */
+
+	/*
+	 * This lets an entity's attributes be accessed like an associative array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+	function offsetSet($key, $value) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = $value;
+		}
+	}
+
+	function offsetGet($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			return $this->attributes[$key];
+		}
+	}
+
+	function offsetUnset($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = ""; // Full unsetting is dangerious for our objects
+		}
+	}
+
+	function offsetExists($offset) {
+		return array_key_exists($offset, $this->attributes);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggExtender.php b/engine/classes/ElggExtender.php
index 1a544b9a9..577207c06 100644
--- a/engine/classes/ElggExtender.php
+++ b/engine/classes/ElggExtender.php
@@ -1,281 +1,281 @@
-<?php
-/**
- * The base class for ElggEntity extenders.
- *
- * Extenders allow you to attach extended information to an
- * ElggEntity.  Core supports two: ElggAnnotation, ElggMetadata,
- * and ElggRelationship
- *
- * Saving the extender data to database is handled by the child class.
- *
- * @tip Plugin authors would probably want to extend either ElggAnnotation
- * or ElggMetadata instead of this class.
- *
- * @package Elgg.Core
- * @subpackage DataModel.Extender
- * @see ElggAnnotation
- * @see ElggMetadata
- * @link http://docs.elgg.org/DataModel/Extenders
- */
-abstract class ElggExtender implements
-	Exportable,
-	Loggable,	// Can events related to this object class be logged
-	Iterator,	// Override foreach behaviour
-	ArrayAccess // Override for array access
-{
-	/**
-	 * Holds attributes to save to database
-	 *
-	 * @var array
-	 */
-	protected $attributes;
-
-	/**
-	 * Returns an attribute
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	protected function get($name) {
-		if (isset($this->attributes[$name])) {
-			// Sanitise value if necessary
-			if ($name=='value') {
-				switch ($this->attributes['value_type']) {
-					case 'integer' :
-						return (int)$this->attributes['value'];
-
-					//case 'tag' :
-					//case 'file' :
-					case 'text' :
-						return ($this->attributes['value']);
-
-					default :
-						throw new InstallationException(sprintf(elgg_echo('InstallationException:TypeNotSupported'), $this->attributes['value_type']));
-				}
-			}
-
-			return $this->attributes[$name];
-		}
-		return null;
-	}
-
-	/**
-	 * Set an attribute
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @param string $value_type
-	 * @return boolean
-	 */
-	protected function set($name, $value, $value_type = "") {
-		$this->attributes[$name] = $value;
-		if ($name == 'value') {
-			$this->attributes['value_type'] = detect_extender_valuetype($value, $value_type);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Return the owner guid of this extender.
-	 *
-	 * @return int
-	 */
-	public function getOwner() {
-		return $this->owner_guid;
-	}
-
-	/**
-	 * Return the owner entity.
-	 *
-	 * @return ElggEntity|false
-	 * @since 1.7.0
-	 */
-	public function getOwnerEntity() {
-		return get_user($this->owner_guid);
-	}
-
-	/**
-	 * Return the entity this describes.
-	 *
-	 * @return ElggEntity The enttiy
-	 */
-	public function getEntity() {
-		return get_entity($this->entity_guid);
-	}
-
-	/**
-	 * Save this data to the appropriate database table.
-	 */
-	abstract public function save();
-
-	/**
-	 * Delete this data.
-	 */
-	abstract public function delete();
-
-	/**
-	 * Returns if a user can edit this extended data.
-	 *
-	 * @param int $user_guid The GUID of the user (defaults to currently logged in user)
-	 * @return bool
-	 */
-	public function canEdit($user_guid = 0) {
-		return can_edit_extender($this->id,$this->type,$user_guid);
-	}
-
-	/**
-	 * Return a url for this extender.
-	 *
-	 * @return string
-	 */
-	public abstract function getURL();
-
-	/*
-	 * EXPORTABLE INTERFACE
-	 */
-
-	/**
-	 * Return an array of fields which can be exported.
-	 *
-	 * @return array
-	 */
-	public function getExportableValues() {
-		return array(
-			'id',
-			'entity_guid',
-			'name',
-			'value',
-			'value_type',
-			'owner_guid',
-			'type',
-		);
-	}
-
-	/**
-	 * Export this object
-	 *
-	 * @return array
-	 */
-	public function export() {
-		$uuid = get_uuid_from_object($this);
-
-		$meta = new ODDMetadata($uuid, guid_to_uuid($this->entity_guid), $this->attributes['name'], $this->attributes['value'], $this->attributes['type'], guid_to_uuid($this->owner_guid));
-		$meta->setAttribute('published', date("r", $this->time_created));
-
-		return $meta;
-	}
-
-	/*
-	 * SYSTEM LOG INTERFACE
-	 */
-
-	/**
-	 * Return an identification for the object for storage in the system log.
-	 * This id must be an integer.
-	 *
-	 * @return int
-	 */
-	public function getSystemLogID() {
-		return $this->id;
-	}
-
-	/**
-	 * Return the class name of the object.
-	 *
-	 * @return string
-	 */
-	public function getClassName() {
-		return get_class($this);
-	}
-
-	/**
-	 * Return the GUID of the owner of this object.
-	 *
-	 * @return int
-	 */
-	public function getObjectOwnerGUID() {
-		return $this->owner_guid;
-	}
-
-	/**
-	 * Return a type of extension.
-	 *
-	 * @return string
-	 */
-	public function getType() {
-		return $this->type;
-	}
-
-	/**
-	 * Return a subtype. For metadata & annotations this is the 'name' and
-	 * for relationship this is the relationship type.
-	 *
-	 * @return string
-	 */
-	public function getSubtype() {
-		return $this->name;
-	}
-
-
-	/*
-	 * ITERATOR INTERFACE
-	 */
-
-	/*
-	 * This lets an entity's attributes be displayed using foreach as a normal array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-	private $valid = FALSE;
-
-	function rewind() {
-		$this->valid = (FALSE !== reset($this->attributes));
-	}
-
-	function current() {
-		return current($this->attributes);
-	}
-
-	function key() {
-		return key($this->attributes);
-	}
-
-	function next() {
-		$this->valid = (FALSE !== next($this->attributes));
-	}
-
-	function valid() {
-		return $this->valid;
-	}
-
-	/*
-	 * ARRAY ACCESS INTERFACE
-	 */
-
-	/*
-	 * This lets an entity's attributes be accessed like an associative array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-	function offsetSet($key, $value) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			$this->attributes[$key] = $value;
-		}
-	}
-
-	function offsetGet($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			return $this->attributes[$key];
-		}
-	}
-
-	function offsetUnset($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			// Full unsetting is dangerious for our objects
-			$this->attributes[$key] = "";
-		}
-	}
-
-	function offsetExists($offset) {
-		return array_key_exists($offset, $this->attributes);
-	}
-}
+<?php
+/**
+ * The base class for ElggEntity extenders.
+ *
+ * Extenders allow you to attach extended information to an
+ * ElggEntity.  Core supports two: ElggAnnotation, ElggMetadata,
+ * and ElggRelationship
+ *
+ * Saving the extender data to database is handled by the child class.
+ *
+ * @tip Plugin authors would probably want to extend either ElggAnnotation
+ * or ElggMetadata instead of this class.
+ *
+ * @package Elgg.Core
+ * @subpackage DataModel.Extender
+ * @see ElggAnnotation
+ * @see ElggMetadata
+ * @link http://docs.elgg.org/DataModel/Extenders
+ */
+abstract class ElggExtender implements
+	Exportable,
+	Loggable,	// Can events related to this object class be logged
+	Iterator,	// Override foreach behaviour
+	ArrayAccess // Override for array access
+{
+	/**
+	 * Holds attributes to save to database
+	 *
+	 * @var array
+	 */
+	protected $attributes;
+
+	/**
+	 * Returns an attribute
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	protected function get($name) {
+		if (isset($this->attributes[$name])) {
+			// Sanitise value if necessary
+			if ($name=='value') {
+				switch ($this->attributes['value_type']) {
+					case 'integer' :
+						return (int)$this->attributes['value'];
+
+					//case 'tag' :
+					//case 'file' :
+					case 'text' :
+						return ($this->attributes['value']);
+
+					default :
+						throw new InstallationException(sprintf(elgg_echo('InstallationException:TypeNotSupported'), $this->attributes['value_type']));
+				}
+			}
+
+			return $this->attributes[$name];
+		}
+		return null;
+	}
+
+	/**
+	 * Set an attribute
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @param string $value_type
+	 * @return boolean
+	 */
+	protected function set($name, $value, $value_type = "") {
+		$this->attributes[$name] = $value;
+		if ($name == 'value') {
+			$this->attributes['value_type'] = detect_extender_valuetype($value, $value_type);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Return the owner guid of this extender.
+	 *
+	 * @return int
+	 */
+	public function getOwner() {
+		return $this->owner_guid;
+	}
+
+	/**
+	 * Return the owner entity.
+	 *
+	 * @return ElggEntity|false
+	 * @since 1.7.0
+	 */
+	public function getOwnerEntity() {
+		return get_user($this->owner_guid);
+	}
+
+	/**
+	 * Return the entity this describes.
+	 *
+	 * @return ElggEntity The enttiy
+	 */
+	public function getEntity() {
+		return get_entity($this->entity_guid);
+	}
+
+	/**
+	 * Save this data to the appropriate database table.
+	 */
+	abstract public function save();
+
+	/**
+	 * Delete this data.
+	 */
+	abstract public function delete();
+
+	/**
+	 * Returns if a user can edit this extended data.
+	 *
+	 * @param int $user_guid The GUID of the user (defaults to currently logged in user)
+	 * @return bool
+	 */
+	public function canEdit($user_guid = 0) {
+		return can_edit_extender($this->id,$this->type,$user_guid);
+	}
+
+	/**
+	 * Return a url for this extender.
+	 *
+	 * @return string
+	 */
+	public abstract function getURL();
+
+	/*
+	 * EXPORTABLE INTERFACE
+	 */
+
+	/**
+	 * Return an array of fields which can be exported.
+	 *
+	 * @return array
+	 */
+	public function getExportableValues() {
+		return array(
+			'id',
+			'entity_guid',
+			'name',
+			'value',
+			'value_type',
+			'owner_guid',
+			'type',
+		);
+	}
+
+	/**
+	 * Export this object
+	 *
+	 * @return array
+	 */
+	public function export() {
+		$uuid = get_uuid_from_object($this);
+
+		$meta = new ODDMetadata($uuid, guid_to_uuid($this->entity_guid), $this->attributes['name'], $this->attributes['value'], $this->attributes['type'], guid_to_uuid($this->owner_guid));
+		$meta->setAttribute('published', date("r", $this->time_created));
+
+		return $meta;
+	}
+
+	/*
+	 * SYSTEM LOG INTERFACE
+	 */
+
+	/**
+	 * Return an identification for the object for storage in the system log.
+	 * This id must be an integer.
+	 *
+	 * @return int
+	 */
+	public function getSystemLogID() {
+		return $this->id;
+	}
+
+	/**
+	 * Return the class name of the object.
+	 *
+	 * @return string
+	 */
+	public function getClassName() {
+		return get_class($this);
+	}
+
+	/**
+	 * Return the GUID of the owner of this object.
+	 *
+	 * @return int
+	 */
+	public function getObjectOwnerGUID() {
+		return $this->owner_guid;
+	}
+
+	/**
+	 * Return a type of extension.
+	 *
+	 * @return string
+	 */
+	public function getType() {
+		return $this->type;
+	}
+
+	/**
+	 * Return a subtype. For metadata & annotations this is the 'name' and
+	 * for relationship this is the relationship type.
+	 *
+	 * @return string
+	 */
+	public function getSubtype() {
+		return $this->name;
+	}
+
+
+	/*
+	 * ITERATOR INTERFACE
+	 */
+
+	/*
+	 * This lets an entity's attributes be displayed using foreach as a normal array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+	private $valid = FALSE;
+
+	function rewind() {
+		$this->valid = (FALSE !== reset($this->attributes));
+	}
+
+	function current() {
+		return current($this->attributes);
+	}
+
+	function key() {
+		return key($this->attributes);
+	}
+
+	function next() {
+		$this->valid = (FALSE !== next($this->attributes));
+	}
+
+	function valid() {
+		return $this->valid;
+	}
+
+	/*
+	 * ARRAY ACCESS INTERFACE
+	 */
+
+	/*
+	 * This lets an entity's attributes be accessed like an associative array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+	function offsetSet($key, $value) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = $value;
+		}
+	}
+
+	function offsetGet($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			return $this->attributes[$key];
+		}
+	}
+
+	function offsetUnset($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			// Full unsetting is dangerious for our objects
+			$this->attributes[$key] = "";
+		}
+	}
+
+	function offsetExists($offset) {
+		return array_key_exists($offset, $this->attributes);
+	}
+}
diff --git a/engine/classes/ElggFileCache.php b/engine/classes/ElggFileCache.php
index b8989a935..61a2357b5 100644
--- a/engine/classes/ElggFileCache.php
+++ b/engine/classes/ElggFileCache.php
@@ -1,164 +1,164 @@
-<?php
-/**
- * ElggFileCache
- * Store cached data in a file store.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage API
- */
-class ElggFileCache extends ElggCache {
-	/**
-	 * Set the Elgg cache.
-	 *
-	 * @param string $cache_path The cache path.
-	 * @param int $max_age Maximum age in seconds, 0 if no limit.
-	 * @param int $max_size Maximum size of cache in seconds, 0 if no limit.
-	 */
-	function __construct($cache_path, $max_age = 0, $max_size = 0) {
-		$this->set_variable("cache_path", $cache_path);
-		$this->set_variable("max_age", $max_age);
-		$this->set_variable("max_size", $max_size);
-
-		if ($cache_path=="") {
-			throw new ConfigurationException(elgg_echo('ConfigurationException:NoCachePath'));
-		}
-	}
-
-	/**
-	 * Create and return a handle to a file.
-	 *
-	 * @param string $filename
-	 * @param string $rw
-	 */
-	protected function create_file($filename, $rw = "rb") {
-		// Create a filename matrix
-		$matrix = "";
-		$depth = strlen($filename);
-		if ($depth > 5) {
-			$depth = 5;
-		}
-
-		// Create full path
-		$path = $this->get_variable("cache_path") . $matrix;
-		if (!is_dir($path)) {
-			mkdir($path, 0700, true);
-		}
-
-		// Open the file
-		if ((!file_exists($path . $filename)) && ($rw=="rb")) {
-			return false;
-		}
-
-		return fopen($path . $filename, $rw);
-	}
-
-	/**
-	 * Create a sanitised filename for the file.
-	 *
-	 * @param string $filename
-	 */
-	protected function sanitise_filename($filename) {
-		// @todo : Writeme
-
-		return $filename;
-	}
-
-	/**
-	 * Save a key
-	 *
-	 * @param string $key
-	 * @param string $data
-	 * @return boolean
-	 */
-	public function save($key, $data) {
-		$f = $this->create_file($this->sanitise_filename($key), "wb");
-		if ($f) {
-			$result = fwrite($f, $data);
-			fclose($f);
-
-			return $result;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Load a key
-	 *
-	 * @param string $key
-	 * @param int $offset
-	 * @param int $limit
-	 * @return string
-	 */
-	public function load($key, $offset = 0, $limit = null) {
-		$f = $this->create_file($this->sanitise_filename($key));
-		if ($f) {
-			//fseek($f, $offset);
-			if (!$limit) {
-				$limit = -1;
-			}
-			$data = stream_get_contents($f, $limit, $offset);
-
-			fclose($f);
-
-			return $data;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Invalidate a given key.
-	 *
-	 * @param string $key
-	 * @return bool
-	 */
-	public function delete($key) {
-		$dir = $this->get_variable("cache_path");
-		
-		if (file_exists($dir.$key)) {
-			return unlink($dir.$key);
-		}
-		return TRUE;
-	}
-
-	public function clear() {
-		// @todo writeme
-	}
-
-	public function __destruct() {
-		// @todo Check size and age, clean up accordingly
-		$size = 0;
-		$dir = $this->get_variable("cache_path");
-
-		// Short circuit if both size and age are unlimited
-		if (($this->get_variable("max_age")==0) && ($this->get_variable("max_size")==0)) {
-			return;
-		}
-
-		$exclude = array(".","..");
-
-		$files = scandir($dir);
-		if (!$files) {
-			throw new IOException(sprintf(elgg_echo('IOException:NotDirectory'), $dir));
-		}
-
-		// Perform cleanup
-		foreach ($files as $f) {
-			if (!in_array($f, $exclude)) {
-				$stat = stat($dir.$f);
-
-				// Add size
-				$size .= $stat['size'];
-
-				// Is this older than my maximum date?
-				if (($this->get_variable("max_age")>0) && (time() - $stat['mtime'] > $this->get_variable("max_age"))) {
-					unlink($dir.$f);
-				}
-
-				// @todo Size
-			}
-		}
-	}
+<?php
+/**
+ * ElggFileCache
+ * Store cached data in a file store.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage API
+ */
+class ElggFileCache extends ElggCache {
+	/**
+	 * Set the Elgg cache.
+	 *
+	 * @param string $cache_path The cache path.
+	 * @param int $max_age Maximum age in seconds, 0 if no limit.
+	 * @param int $max_size Maximum size of cache in seconds, 0 if no limit.
+	 */
+	function __construct($cache_path, $max_age = 0, $max_size = 0) {
+		$this->set_variable("cache_path", $cache_path);
+		$this->set_variable("max_age", $max_age);
+		$this->set_variable("max_size", $max_size);
+
+		if ($cache_path=="") {
+			throw new ConfigurationException(elgg_echo('ConfigurationException:NoCachePath'));
+		}
+	}
+
+	/**
+	 * Create and return a handle to a file.
+	 *
+	 * @param string $filename
+	 * @param string $rw
+	 */
+	protected function create_file($filename, $rw = "rb") {
+		// Create a filename matrix
+		$matrix = "";
+		$depth = strlen($filename);
+		if ($depth > 5) {
+			$depth = 5;
+		}
+
+		// Create full path
+		$path = $this->get_variable("cache_path") . $matrix;
+		if (!is_dir($path)) {
+			mkdir($path, 0700, true);
+		}
+
+		// Open the file
+		if ((!file_exists($path . $filename)) && ($rw=="rb")) {
+			return false;
+		}
+
+		return fopen($path . $filename, $rw);
+	}
+
+	/**
+	 * Create a sanitised filename for the file.
+	 *
+	 * @param string $filename
+	 */
+	protected function sanitise_filename($filename) {
+		// @todo : Writeme
+
+		return $filename;
+	}
+
+	/**
+	 * Save a key
+	 *
+	 * @param string $key
+	 * @param string $data
+	 * @return boolean
+	 */
+	public function save($key, $data) {
+		$f = $this->create_file($this->sanitise_filename($key), "wb");
+		if ($f) {
+			$result = fwrite($f, $data);
+			fclose($f);
+
+			return $result;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Load a key
+	 *
+	 * @param string $key
+	 * @param int $offset
+	 * @param int $limit
+	 * @return string
+	 */
+	public function load($key, $offset = 0, $limit = null) {
+		$f = $this->create_file($this->sanitise_filename($key));
+		if ($f) {
+			//fseek($f, $offset);
+			if (!$limit) {
+				$limit = -1;
+			}
+			$data = stream_get_contents($f, $limit, $offset);
+
+			fclose($f);
+
+			return $data;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Invalidate a given key.
+	 *
+	 * @param string $key
+	 * @return bool
+	 */
+	public function delete($key) {
+		$dir = $this->get_variable("cache_path");
+		
+		if (file_exists($dir.$key)) {
+			return unlink($dir.$key);
+		}
+		return TRUE;
+	}
+
+	public function clear() {
+		// @todo writeme
+	}
+
+	public function __destruct() {
+		// @todo Check size and age, clean up accordingly
+		$size = 0;
+		$dir = $this->get_variable("cache_path");
+
+		// Short circuit if both size and age are unlimited
+		if (($this->get_variable("max_age")==0) && ($this->get_variable("max_size")==0)) {
+			return;
+		}
+
+		$exclude = array(".","..");
+
+		$files = scandir($dir);
+		if (!$files) {
+			throw new IOException(sprintf(elgg_echo('IOException:NotDirectory'), $dir));
+		}
+
+		// Perform cleanup
+		foreach ($files as $f) {
+			if (!in_array($f, $exclude)) {
+				$stat = stat($dir.$f);
+
+				// Add size
+				$size .= $stat['size'];
+
+				// Is this older than my maximum date?
+				if (($this->get_variable("max_age")>0) && (time() - $stat['mtime'] > $this->get_variable("max_age"))) {
+					unlink($dir.$f);
+				}
+
+				// @todo Size
+			}
+		}
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggFilestore.php b/engine/classes/ElggFilestore.php
index 3311842a9..9e0fed623 100644
--- a/engine/classes/ElggFilestore.php
+++ b/engine/classes/ElggFilestore.php
@@ -1,115 +1,115 @@
-<?php
-/**
- * @class ElggFilestore
- * This class defines the interface for all elgg data repositories.
- * @author Curverider Ltd
- */
-abstract class ElggFilestore {
-	/**
-	 * Attempt to open the file $file for storage or writing.
-	 *
-	 * @param ElggFile $file
-	 * @param string $mode "read", "write", "append"
-	 * @return mixed A handle to the opened file or false on error.
-	 */
-	abstract public function open(ElggFile $file, $mode);
-
-	/**
-	 * Write data to a given file handle.
-	 *
-	 * @param mixed $f The file handle - exactly what this is depends on the file system
-	 * @param string $data The binary string of data to write
-	 * @return int Number of bytes written.
-	 */
-	abstract public function write($f, $data);
-
-	/**
-	 * Read data from a filestore.
-	 *
-	 * @param mixed $f The file handle
-	 * @param int $length Length in bytes to read.
-	 * @param int $offset The optional offset.
-	 * @return mixed String of data or false on error.
-	 */
-	abstract public function read($f, $length, $offset = 0);
-
-	/**
-	 * Seek a given position within a file handle.
-	 *
-	 * @param mixed $f The file handle.
-	 * @param int $position The position.
-	 */
-	abstract public function seek($f, $position);
-
-	/**
-	 * Return a whether the end of a file has been reached.
-	 *
-	 * @param mixed $f The file handle.
-	 * @return boolean
-	 */
-	abstract public function eof($f);
-
-	/**
-	 * Return the current position in an open file.
-	 *
-	 * @param mixed $f The file handle.
-	 * @return int
-	 */
-	abstract public function tell($f);
-
-	/**
-	 * Close a given file handle.
-	 *
-	 * @param mixed $f
-	 */
-	abstract public function close($f);
-
-	/**
-	 * Delete the file associated with a given file handle.
-	 *
-	 * @param ElggFile $file
-	 */
-	abstract public function delete(ElggFile $file);
-
-	/**
-	 * Return the size in bytes for a given file.
-	 *
-	 * @param ElggFile $file
-	 */
-	abstract public function getFileSize(ElggFile $file);
-
-	/**
-	 * Return the filename of a given file as stored on the filestore.
-	 *
-	 * @param ElggFile $file
-	 */
-	abstract public function getFilenameOnFilestore(ElggFile $file);
-
-	/**
-	 * Get the filestore's creation parameters as an associative array.
-	 * Used for serialisation and for storing the creation details along side a file object.
-	 *
-	 * @return array
-	 */
-	abstract public function getParameters();
-
-	/**
-	 * Set the parameters from the associative array produced by $this->getParameters().
-	 */
-	abstract public function setParameters(array $parameters);
-
-	/**
-	 * Get the contents of the whole file.
-	 *
-	 * @param mixed $file The file handle.
-	 * @return mixed The file contents.
-	 */
-	abstract public function grabFile(ElggFile $file);
-
-	/**
-	 * Return whether a file physically exists or not.
-	 *
-	 * @param ElggFile $file
-	 */
-	abstract public function exists(ElggFile $file);
+<?php
+/**
+ * @class ElggFilestore
+ * This class defines the interface for all elgg data repositories.
+ * @author Curverider Ltd
+ */
+abstract class ElggFilestore {
+	/**
+	 * Attempt to open the file $file for storage or writing.
+	 *
+	 * @param ElggFile $file
+	 * @param string $mode "read", "write", "append"
+	 * @return mixed A handle to the opened file or false on error.
+	 */
+	abstract public function open(ElggFile $file, $mode);
+
+	/**
+	 * Write data to a given file handle.
+	 *
+	 * @param mixed $f The file handle - exactly what this is depends on the file system
+	 * @param string $data The binary string of data to write
+	 * @return int Number of bytes written.
+	 */
+	abstract public function write($f, $data);
+
+	/**
+	 * Read data from a filestore.
+	 *
+	 * @param mixed $f The file handle
+	 * @param int $length Length in bytes to read.
+	 * @param int $offset The optional offset.
+	 * @return mixed String of data or false on error.
+	 */
+	abstract public function read($f, $length, $offset = 0);
+
+	/**
+	 * Seek a given position within a file handle.
+	 *
+	 * @param mixed $f The file handle.
+	 * @param int $position The position.
+	 */
+	abstract public function seek($f, $position);
+
+	/**
+	 * Return a whether the end of a file has been reached.
+	 *
+	 * @param mixed $f The file handle.
+	 * @return boolean
+	 */
+	abstract public function eof($f);
+
+	/**
+	 * Return the current position in an open file.
+	 *
+	 * @param mixed $f The file handle.
+	 * @return int
+	 */
+	abstract public function tell($f);
+
+	/**
+	 * Close a given file handle.
+	 *
+	 * @param mixed $f
+	 */
+	abstract public function close($f);
+
+	/**
+	 * Delete the file associated with a given file handle.
+	 *
+	 * @param ElggFile $file
+	 */
+	abstract public function delete(ElggFile $file);
+
+	/**
+	 * Return the size in bytes for a given file.
+	 *
+	 * @param ElggFile $file
+	 */
+	abstract public function getFileSize(ElggFile $file);
+
+	/**
+	 * Return the filename of a given file as stored on the filestore.
+	 *
+	 * @param ElggFile $file
+	 */
+	abstract public function getFilenameOnFilestore(ElggFile $file);
+
+	/**
+	 * Get the filestore's creation parameters as an associative array.
+	 * Used for serialisation and for storing the creation details along side a file object.
+	 *
+	 * @return array
+	 */
+	abstract public function getParameters();
+
+	/**
+	 * Set the parameters from the associative array produced by $this->getParameters().
+	 */
+	abstract public function setParameters(array $parameters);
+
+	/**
+	 * Get the contents of the whole file.
+	 *
+	 * @param mixed $file The file handle.
+	 * @return mixed The file contents.
+	 */
+	abstract public function grabFile(ElggFile $file);
+
+	/**
+	 * Return whether a file physically exists or not.
+	 *
+	 * @param ElggFile $file
+	 */
+	abstract public function exists(ElggFile $file);
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggGroup.php b/engine/classes/ElggGroup.php
index 9713ca39e..9048ad69b 100644
--- a/engine/classes/ElggGroup.php
+++ b/engine/classes/ElggGroup.php
@@ -1,299 +1,299 @@
-<?php
-
-/**
- * @class ElggGroup Class representing a container for other elgg entities.
- * @author Curverider Ltd
- */
-class ElggGroup extends ElggEntity
-	implements Friendable {
-
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['type'] = "group";
-		$this->attributes['name'] = "";
-		$this->attributes['description'] = "";
-		$this->attributes['tables_split'] = 2;
-	}
-
-	/**
-	 * Construct a new user entity, optionally from a given id value.
-	 *
-	 * @param mixed $guid If an int, load that GUID.
-	 * 	If a db row then will attempt to load the rest of the data.
-	 * @throws Exception if there was a problem creating the user.
-	 */
-	function __construct($guid = null) {
-		$this->initialise_attributes();
-
-		if (!empty($guid)) {
-			// Is $guid is a DB row - either a entity row, or a user table row.
-			if ($guid instanceof stdClass) {
-				// Load the rest
-				if (!$this->load($guid->guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
-				}
-			}
-			// Is $guid is an ElggGroup? Use a copy constructor
-			else if ($guid instanceof ElggGroup) {
-				elgg_deprecated_notice('This type of usage of the ElggGroup constructor was deprecated. Please use the clone method.', 1.7);
-
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-			// Is this is an ElggEntity but not an ElggGroup = ERROR!
-			else if ($guid instanceof ElggEntity) {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggGroup'));
-			}
-			// We assume if we have got this far, $guid is an int
-			else if (is_numeric($guid)) {
-				if (!$this->load($guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
-				}
-			}
-
-			else {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
-			}
-		}
-	}
-
-	/**
-	 * Add an ElggObject to this group.
-	 *
-	 * @param ElggObject $object The object.
-	 * @return bool
-	 */
-	public function addObjectToGroup(ElggObject $object) {
-		return add_object_to_group($this->getGUID(), $object->getGUID());
-	}
-
-	/**
-	 * Remove an object from the containing group.
-	 *
-	 * @param int $guid The guid of the object.
-	 * @return bool
-	 */
-	public function removeObjectFromGroup($guid) {
-		return remove_object_from_group($this->getGUID(), $guid);
-	}
-
-	public function get($name) {
-		if ($name == 'username') {
-			return 'group:' . $this->getGUID();
-		}
-		return parent::get($name);
-	}
-
-/**
- * Start friendable compatibility block:
- *
- * 	public function addFriend($friend_guid);
-	public function removeFriend($friend_guid);
-	public function isFriend();
-	public function isFriendsWith($user_guid);
-	public function isFriendOf($user_guid);
-	public function getFriends($subtype = "", $limit = 10, $offset = 0);
-	public function getFriendsOf($subtype = "", $limit = 10, $offset = 0);
-	public function getObjects($subtype="", $limit = 10, $offset = 0);
-	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0);
-	public function countObjects($subtype = "");
- */
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function addFriend($friend_guid) {
-		return $this->join(get_entity($friend_guid));
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function removeFriend($friend_guid) {
-		return $this->leave(get_entity($friend_guid));
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function isFriend() {
-		return $this->isMember();
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function isFriendsWith($user_guid) {
-		return $this->isMember($user_guid);
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function isFriendOf($user_guid) {
-		return $this->isMember($user_guid);
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function getFriends($subtype = "", $limit = 10, $offset = 0) {
-		return get_group_members($this->getGUID(), $limit, $offset);
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function getFriendsOf($subtype = "", $limit = 10, $offset = 0) {
-		return get_group_members($this->getGUID(), $limit, $offset);
-	}
-
-	/**
-	 * Get objects contained in this group.
-	 *
-	 * @param string $subtype
-	 * @param int $limit
-	 * @param int $offset
-	 * @return mixed
-	 */
-	public function getObjects($subtype="", $limit = 10, $offset = 0) {
-		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", $limit, $offset, false);
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0) {
-		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", $limit, $offset, false);
-	}
-
-	/**
-	 * For compatibility with Friendable
-	 */
-	public function countObjects($subtype = "") {
-		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", 10, 0, true);
-	}
-
-/**
- * End friendable compatibility block
- */
-
-	/**
-	 * Get a list of group members.
-	 *
-	 * @param int $limit
-	 * @param int $offset
-	 * @return mixed
-	 */
-	public function getMembers($limit = 10, $offset = 0, $count = false) {
-		return get_group_members($this->getGUID(), $limit, $offset, 0 , $count);
-	}
-
-	/**
-	 * Returns whether the current group is public membership or not.
-	 * @return bool
-	 */
-	public function isPublicMembership() {
-		if ($this->membership == ACCESS_PUBLIC) {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Return whether a given user is a member of this group or not.
-	 *
-	 * @param ElggUser $user The user
-	 * @return bool
-	 */
-	public function isMember($user = 0) {
-		if (!($user instanceof ElggUser)) {
-			$user = get_loggedin_user();
-		}
-		if (!($user instanceof ElggUser)) {
-			return false;
-		}
-		return is_group_member($this->getGUID(), $user->getGUID());
-	}
-
-	/**
-	 * Join an elgg user to this group.
-	 *
-	 * @param ElggUser $user
-	 * @return bool
-	 */
-	public function join(ElggUser $user) {
-		return join_group($this->getGUID(), $user->getGUID());
-	}
-
-	/**
-	 * Remove a user from the group.
-	 *
-	 * @param ElggUser $user
-	 */
-	public function leave(ElggUser $user) {
-		return leave_group($this->getGUID(), $user->getGUID());
-	}
-
-	/**
-	 * Override the load function.
-	 * This function will ensure that all data is loaded (were possible), so
-	 * if only part of the ElggGroup is loaded, it'll load the rest.
-	 *
-	 * @param int $guid
-	 */
-	protected function load($guid) {
-		// Test to see if we have the generic stuff
-		if (!parent::load($guid)) {
-			return false;
-		}
-
-		// Check the type
-		if ($this->attributes['type']!='group') {
-			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
-		}
-
-		// Load missing data
-		$row = get_group_entity_as_row($guid);
-		if (($row) && (!$this->isFullyLoaded())) {
-			// If $row isn't a cached copy then increment the counter
-			$this->attributes['tables_loaded'] ++;
-		}
-
-		// Now put these into the attributes array as core values
-		$objarray = (array) $row;
-		foreach($objarray as $key => $value) {
-			$this->attributes[$key] = $value;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Override the save function.
-	 */
-	public function save() {
-		// Save generic stuff
-		if (!parent::save()) {
-			return false;
-		}
-
-		// Now save specific stuff
-		return create_group_entity($this->get('guid'), $this->get('name'), $this->get('description'));
-	}
-
-	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Return an array of fields which can be exported.
-	 */
-	public function getExportableValues() {
-		return array_merge(parent::getExportableValues(), array(
-			'name',
-			'description',
-		));
-	}
+<?php
+
+/**
+ * @class ElggGroup Class representing a container for other elgg entities.
+ * @author Curverider Ltd
+ */
+class ElggGroup extends ElggEntity
+	implements Friendable {
+
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['type'] = "group";
+		$this->attributes['name'] = "";
+		$this->attributes['description'] = "";
+		$this->attributes['tables_split'] = 2;
+	}
+
+	/**
+	 * Construct a new user entity, optionally from a given id value.
+	 *
+	 * @param mixed $guid If an int, load that GUID.
+	 * 	If a db row then will attempt to load the rest of the data.
+	 * @throws Exception if there was a problem creating the user.
+	 */
+	function __construct($guid = null) {
+		$this->initialise_attributes();
+
+		if (!empty($guid)) {
+			// Is $guid is a DB row - either a entity row, or a user table row.
+			if ($guid instanceof stdClass) {
+				// Load the rest
+				if (!$this->load($guid->guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
+				}
+			}
+			// Is $guid is an ElggGroup? Use a copy constructor
+			else if ($guid instanceof ElggGroup) {
+				elgg_deprecated_notice('This type of usage of the ElggGroup constructor was deprecated. Please use the clone method.', 1.7);
+
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+			// Is this is an ElggEntity but not an ElggGroup = ERROR!
+			else if ($guid instanceof ElggEntity) {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggGroup'));
+			}
+			// We assume if we have got this far, $guid is an int
+			else if (is_numeric($guid)) {
+				if (!$this->load($guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
+				}
+			}
+
+			else {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
+			}
+		}
+	}
+
+	/**
+	 * Add an ElggObject to this group.
+	 *
+	 * @param ElggObject $object The object.
+	 * @return bool
+	 */
+	public function addObjectToGroup(ElggObject $object) {
+		return add_object_to_group($this->getGUID(), $object->getGUID());
+	}
+
+	/**
+	 * Remove an object from the containing group.
+	 *
+	 * @param int $guid The guid of the object.
+	 * @return bool
+	 */
+	public function removeObjectFromGroup($guid) {
+		return remove_object_from_group($this->getGUID(), $guid);
+	}
+
+	public function get($name) {
+		if ($name == 'username') {
+			return 'group:' . $this->getGUID();
+		}
+		return parent::get($name);
+	}
+
+/**
+ * Start friendable compatibility block:
+ *
+ * 	public function addFriend($friend_guid);
+	public function removeFriend($friend_guid);
+	public function isFriend();
+	public function isFriendsWith($user_guid);
+	public function isFriendOf($user_guid);
+	public function getFriends($subtype = "", $limit = 10, $offset = 0);
+	public function getFriendsOf($subtype = "", $limit = 10, $offset = 0);
+	public function getObjects($subtype="", $limit = 10, $offset = 0);
+	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0);
+	public function countObjects($subtype = "");
+ */
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function addFriend($friend_guid) {
+		return $this->join(get_entity($friend_guid));
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function removeFriend($friend_guid) {
+		return $this->leave(get_entity($friend_guid));
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function isFriend() {
+		return $this->isMember();
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function isFriendsWith($user_guid) {
+		return $this->isMember($user_guid);
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function isFriendOf($user_guid) {
+		return $this->isMember($user_guid);
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function getFriends($subtype = "", $limit = 10, $offset = 0) {
+		return get_group_members($this->getGUID(), $limit, $offset);
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function getFriendsOf($subtype = "", $limit = 10, $offset = 0) {
+		return get_group_members($this->getGUID(), $limit, $offset);
+	}
+
+	/**
+	 * Get objects contained in this group.
+	 *
+	 * @param string $subtype
+	 * @param int $limit
+	 * @param int $offset
+	 * @return mixed
+	 */
+	public function getObjects($subtype="", $limit = 10, $offset = 0) {
+		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", $limit, $offset, false);
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0) {
+		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", $limit, $offset, false);
+	}
+
+	/**
+	 * For compatibility with Friendable
+	 */
+	public function countObjects($subtype = "") {
+		return get_objects_in_group($this->getGUID(), $subtype, 0, 0, "", 10, 0, true);
+	}
+
+/**
+ * End friendable compatibility block
+ */
+
+	/**
+	 * Get a list of group members.
+	 *
+	 * @param int $limit
+	 * @param int $offset
+	 * @return mixed
+	 */
+	public function getMembers($limit = 10, $offset = 0, $count = false) {
+		return get_group_members($this->getGUID(), $limit, $offset, 0 , $count);
+	}
+
+	/**
+	 * Returns whether the current group is public membership or not.
+	 * @return bool
+	 */
+	public function isPublicMembership() {
+		if ($this->membership == ACCESS_PUBLIC) {
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Return whether a given user is a member of this group or not.
+	 *
+	 * @param ElggUser $user The user
+	 * @return bool
+	 */
+	public function isMember($user = 0) {
+		if (!($user instanceof ElggUser)) {
+			$user = get_loggedin_user();
+		}
+		if (!($user instanceof ElggUser)) {
+			return false;
+		}
+		return is_group_member($this->getGUID(), $user->getGUID());
+	}
+
+	/**
+	 * Join an elgg user to this group.
+	 *
+	 * @param ElggUser $user
+	 * @return bool
+	 */
+	public function join(ElggUser $user) {
+		return join_group($this->getGUID(), $user->getGUID());
+	}
+
+	/**
+	 * Remove a user from the group.
+	 *
+	 * @param ElggUser $user
+	 */
+	public function leave(ElggUser $user) {
+		return leave_group($this->getGUID(), $user->getGUID());
+	}
+
+	/**
+	 * Override the load function.
+	 * This function will ensure that all data is loaded (were possible), so
+	 * if only part of the ElggGroup is loaded, it'll load the rest.
+	 *
+	 * @param int $guid
+	 */
+	protected function load($guid) {
+		// Test to see if we have the generic stuff
+		if (!parent::load($guid)) {
+			return false;
+		}
+
+		// Check the type
+		if ($this->attributes['type']!='group') {
+			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
+		}
+
+		// Load missing data
+		$row = get_group_entity_as_row($guid);
+		if (($row) && (!$this->isFullyLoaded())) {
+			// If $row isn't a cached copy then increment the counter
+			$this->attributes['tables_loaded'] ++;
+		}
+
+		// Now put these into the attributes array as core values
+		$objarray = (array) $row;
+		foreach($objarray as $key => $value) {
+			$this->attributes[$key] = $value;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Override the save function.
+	 */
+	public function save() {
+		// Save generic stuff
+		if (!parent::save()) {
+			return false;
+		}
+
+		// Now save specific stuff
+		return create_group_entity($this->get('guid'), $this->get('name'), $this->get('description'));
+	}
+
+	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an array of fields which can be exported.
+	 */
+	public function getExportableValues() {
+		return array_merge(parent::getExportableValues(), array(
+			'name',
+			'description',
+		));
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggHMACCache.php b/engine/classes/ElggHMACCache.php
index 8c50d7dfb..afa64ba12 100644
--- a/engine/classes/ElggHMACCache.php
+++ b/engine/classes/ElggHMACCache.php
@@ -1,94 +1,94 @@
-<?php
-/**
- * ElggHMACCache
- * Store cached data in a temporary database, only used by the HMAC stuff.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage API
- */
-class ElggHMACCache extends ElggCache {
-	/**
-	 * Set the Elgg cache.
-	 *
-	 * @param int $max_age Maximum age in seconds, 0 if no limit.
-	 */
-	function __construct($max_age = 0) {
-		$this->set_variable("max_age", $max_age);
-	}
-
-	/**
-	 * Save a key
-	 *
-	 * @param string $key
-	 * @param string $data
-	 * @return boolean
-	 */
-	public function save($key, $data) {
-		global $CONFIG;
-
-		$key = sanitise_string($key);
-		$time = time();
-
-		return insert_data("INSERT into {$CONFIG->dbprefix}hmac_cache (hmac, ts) VALUES ('$key', '$time')");
-	}
-
-	/**
-	 * Load a key
-	 *
-	 * @param string $key
-	 * @param int $offset
-	 * @param int $limit
-	 * @return string
-	 */
-	public function load($key, $offset = 0, $limit = null) {
-		global $CONFIG;
-
-		$key = sanitise_string($key);
-
-		$row = get_data_row("SELECT * from {$CONFIG->dbprefix}hmac_cache where hmac='$key'");
-		if ($row) {
-			return $row->hmac;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Invalidate a given key.
-	 *
-	 * @param string $key
-	 * @return bool
-	 */
-	public function delete($key) {
-		global $CONFIG;
-
-		$key = sanitise_string($key);
-
-		return delete_data("DELETE from {$CONFIG->dbprefix}hmac_cache where hmac='$key'");
-	}
-
-	/**
-	 * Clear out all the contents of the cache.
-	 *
-	 * Not currently implemented in this cache type.
-	 */
-	public function clear() {
-		return true;
-	}
-
-	/**
-	 * Clean out old stuff.
-	 *
-	 */
-	public function __destruct() {
-		global $CONFIG;
-
-		$time = time();
-		$age = (int)$this->get_variable("max_age");
-
-		$expires = $time-$age;
-
-		delete_data("DELETE from {$CONFIG->dbprefix}hmac_cache where ts<$expires");
-	}
+<?php
+/**
+ * ElggHMACCache
+ * Store cached data in a temporary database, only used by the HMAC stuff.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage API
+ */
+class ElggHMACCache extends ElggCache {
+	/**
+	 * Set the Elgg cache.
+	 *
+	 * @param int $max_age Maximum age in seconds, 0 if no limit.
+	 */
+	function __construct($max_age = 0) {
+		$this->set_variable("max_age", $max_age);
+	}
+
+	/**
+	 * Save a key
+	 *
+	 * @param string $key
+	 * @param string $data
+	 * @return boolean
+	 */
+	public function save($key, $data) {
+		global $CONFIG;
+
+		$key = sanitise_string($key);
+		$time = time();
+
+		return insert_data("INSERT into {$CONFIG->dbprefix}hmac_cache (hmac, ts) VALUES ('$key', '$time')");
+	}
+
+	/**
+	 * Load a key
+	 *
+	 * @param string $key
+	 * @param int $offset
+	 * @param int $limit
+	 * @return string
+	 */
+	public function load($key, $offset = 0, $limit = null) {
+		global $CONFIG;
+
+		$key = sanitise_string($key);
+
+		$row = get_data_row("SELECT * from {$CONFIG->dbprefix}hmac_cache where hmac='$key'");
+		if ($row) {
+			return $row->hmac;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Invalidate a given key.
+	 *
+	 * @param string $key
+	 * @return bool
+	 */
+	public function delete($key) {
+		global $CONFIG;
+
+		$key = sanitise_string($key);
+
+		return delete_data("DELETE from {$CONFIG->dbprefix}hmac_cache where hmac='$key'");
+	}
+
+	/**
+	 * Clear out all the contents of the cache.
+	 *
+	 * Not currently implemented in this cache type.
+	 */
+	public function clear() {
+		return true;
+	}
+
+	/**
+	 * Clean out old stuff.
+	 *
+	 */
+	public function __destruct() {
+		global $CONFIG;
+
+		$time = time();
+		$age = (int)$this->get_variable("max_age");
+
+		$expires = $time-$age;
+
+		delete_data("DELETE from {$CONFIG->dbprefix}hmac_cache where ts<$expires");
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggMemcache.php b/engine/classes/ElggMemcache.php
index 5e898c26a..9f12fb73b 100644
--- a/engine/classes/ElggMemcache.php
+++ b/engine/classes/ElggMemcache.php
@@ -1,151 +1,151 @@
-<?php
-/**
- * Memcache wrapper class.
- * @author Curverider Ltd <info@elgg.com>
- */
-class ElggMemcache extends ElggSharedMemoryCache {
-	/**
-	 * Minimum version of memcached needed to run
-	 *
-	 */
-	private static $MINSERVERVERSION = '1.1.12';
-
-	/**
-	 * Memcache object
-	 */
-	private $memcache;
-
-	/**
-	 * Expiry of saved items (default timeout after a day to prevent anything getting too stale)
-	 */
-	private $expires = 86400;
-
-	/**
-	 * The version of memcache running
-	 */
-	private $version = 0;
-
-	/**
-	 * Connect to memcache.
-	 *
-	 * @param string $cache_id The namespace for this cache to write to - note, namespaces of the same name are shared!
-	 */
-	function __construct($namespace = 'default') {
-		global $CONFIG;
-
-		$this->setNamespace($namespace);
-
-		// Do we have memcache?
-		if (!class_exists('Memcache')) {
-			throw new ConfigurationException(elgg_echo('memcache:notinstalled'));
-		}
-
-		// Create memcache object
-		$this->memcache	= new Memcache;
-
-		// Now add servers
-		if (!$CONFIG->memcache_servers) {
-			throw new ConfigurationException(elgg_echo('memcache:noservers'));
-		}
-
-		if (is_callable($this->memcache, 'addServer')) {
-			foreach ($CONFIG->memcache_servers as $server) {
-				if (is_array($server)) {
-					$this->memcache->addServer(
-						$server[0],
-						isset($server[1]) ? $server[1] : 11211,
-						isset($server[2]) ? $server[2] : true,
-						isset($server[3]) ? $server[3] : null,
-						isset($server[4]) ? $server[4] : 1,
-						isset($server[5]) ? $server[5] : 15,
-						isset($server[6]) ? $server[6] : true
-					);
-
-				} else {
-					$this->memcache->addServer($server, 11211);
-				}
-			}
-		} else {
-			elgg_log(elgg_echo('memcache:noaddserver'), 'ERROR');
-
-			$server = $CONFIG->memcache_servers[0];
-			if (is_array($server)) {
-				$this->memcache->connect($server[0], $server[1]);
-			} else {
-				$this->memcache->addServer($server, 11211);
-			}
-		}
-
-		// Get version
-		$this->version = $this->memcache->getversion();
-		if (version_compare($this->version, ElggMemcache::$MINSERVERVERSION, '<')) {
-			throw new ConfigurationException(sprintf(elgg_echo('memcache:versiontoolow'), ElggMemcache::$MINSERVERVERSION, $this->version));
-		}
-
-		// Set some defaults
-		if (isset($CONFIG->memcache_expires)) {
-			$this->expires = $CONFIG->memcache_expires;
-		}
-	}
-
-	/**
-	 * Set the default expiry.
-	 *
-	 * @param int $expires The lifetime as a unix timestamp or time from now. Defaults forever.
-	 */
-	public function setDefaultExpiry($expires = 0) {
-		$this->expires = $expires;
-	}
-
-	/**
-	 * Combine a key with the namespace.
-	 * Memcache can only accept <250 char key. If the given key is too long it is shortened.
-	 *
-	 * @param string $key The key
-	 * @return string The new key.
-	 */
-	private function make_memcache_key($key) {
-		$prefix = $this->getNamespace() . ":";
-
-		if (strlen($prefix.$key)> 250) {
-			$key = md5($key);
-		}
-
-		return $prefix.$key;
-	}
-
-	public function save($key, $data) {
-		$key = $this->make_memcache_key($key);
-
-		$result = $this->memcache->set($key, $data, null, $this->expires);
-		if (!$result) {
-			elgg_log("MEMCACHE: FAILED TO SAVE $key", 'ERROR');
-		}
-
-		return $result;
-	}
-
-	public function load($key, $offset = 0, $limit = null) {
-		$key = $this->make_memcache_key($key);
-
-		$result = $this->memcache->get($key);
-		if (!$result) {
-			elgg_log("MEMCACHE: FAILED TO LOAD $key", 'ERROR');
-		}
-
-		return $result;
-	}
-
-	public function delete($key) {
-		$key = $this->make_memcache_key($key);
-
-		return $this->memcache->delete($key, 0);
-	}
-
-	public function clear() {
-		// DISABLE clearing for now - you must use delete on a specific key.
-		return true;
-
-		// @todo Namespaces as in #532
-	}
-}
+<?php
+/**
+ * Memcache wrapper class.
+ * @author Curverider Ltd <info@elgg.com>
+ */
+class ElggMemcache extends ElggSharedMemoryCache {
+	/**
+	 * Minimum version of memcached needed to run
+	 *
+	 */
+	private static $MINSERVERVERSION = '1.1.12';
+
+	/**
+	 * Memcache object
+	 */
+	private $memcache;
+
+	/**
+	 * Expiry of saved items (default timeout after a day to prevent anything getting too stale)
+	 */
+	private $expires = 86400;
+
+	/**
+	 * The version of memcache running
+	 */
+	private $version = 0;
+
+	/**
+	 * Connect to memcache.
+	 *
+	 * @param string $cache_id The namespace for this cache to write to - note, namespaces of the same name are shared!
+	 */
+	function __construct($namespace = 'default') {
+		global $CONFIG;
+
+		$this->setNamespace($namespace);
+
+		// Do we have memcache?
+		if (!class_exists('Memcache')) {
+			throw new ConfigurationException(elgg_echo('memcache:notinstalled'));
+		}
+
+		// Create memcache object
+		$this->memcache	= new Memcache;
+
+		// Now add servers
+		if (!$CONFIG->memcache_servers) {
+			throw new ConfigurationException(elgg_echo('memcache:noservers'));
+		}
+
+		if (is_callable($this->memcache, 'addServer')) {
+			foreach ($CONFIG->memcache_servers as $server) {
+				if (is_array($server)) {
+					$this->memcache->addServer(
+						$server[0],
+						isset($server[1]) ? $server[1] : 11211,
+						isset($server[2]) ? $server[2] : true,
+						isset($server[3]) ? $server[3] : null,
+						isset($server[4]) ? $server[4] : 1,
+						isset($server[5]) ? $server[5] : 15,
+						isset($server[6]) ? $server[6] : true
+					);
+
+				} else {
+					$this->memcache->addServer($server, 11211);
+				}
+			}
+		} else {
+			elgg_log(elgg_echo('memcache:noaddserver'), 'ERROR');
+
+			$server = $CONFIG->memcache_servers[0];
+			if (is_array($server)) {
+				$this->memcache->connect($server[0], $server[1]);
+			} else {
+				$this->memcache->addServer($server, 11211);
+			}
+		}
+
+		// Get version
+		$this->version = $this->memcache->getversion();
+		if (version_compare($this->version, ElggMemcache::$MINSERVERVERSION, '<')) {
+			throw new ConfigurationException(sprintf(elgg_echo('memcache:versiontoolow'), ElggMemcache::$MINSERVERVERSION, $this->version));
+		}
+
+		// Set some defaults
+		if (isset($CONFIG->memcache_expires)) {
+			$this->expires = $CONFIG->memcache_expires;
+		}
+	}
+
+	/**
+	 * Set the default expiry.
+	 *
+	 * @param int $expires The lifetime as a unix timestamp or time from now. Defaults forever.
+	 */
+	public function setDefaultExpiry($expires = 0) {
+		$this->expires = $expires;
+	}
+
+	/**
+	 * Combine a key with the namespace.
+	 * Memcache can only accept <250 char key. If the given key is too long it is shortened.
+	 *
+	 * @param string $key The key
+	 * @return string The new key.
+	 */
+	private function make_memcache_key($key) {
+		$prefix = $this->getNamespace() . ":";
+
+		if (strlen($prefix.$key)> 250) {
+			$key = md5($key);
+		}
+
+		return $prefix.$key;
+	}
+
+	public function save($key, $data) {
+		$key = $this->make_memcache_key($key);
+
+		$result = $this->memcache->set($key, $data, null, $this->expires);
+		if (!$result) {
+			elgg_log("MEMCACHE: FAILED TO SAVE $key", 'ERROR');
+		}
+
+		return $result;
+	}
+
+	public function load($key, $offset = 0, $limit = null) {
+		$key = $this->make_memcache_key($key);
+
+		$result = $this->memcache->get($key);
+		if (!$result) {
+			elgg_log("MEMCACHE: FAILED TO LOAD $key", 'ERROR');
+		}
+
+		return $result;
+	}
+
+	public function delete($key) {
+		$key = $this->make_memcache_key($key);
+
+		return $this->memcache->delete($key, 0);
+	}
+
+	public function clear() {
+		// DISABLE clearing for now - you must use delete on a specific key.
+		return true;
+
+		// @todo Namespaces as in #532
+	}
+}
diff --git a/engine/classes/ElggMetadata.php b/engine/classes/ElggMetadata.php
index 631b73c8f..72fc7c379 100644
--- a/engine/classes/ElggMetadata.php
+++ b/engine/classes/ElggMetadata.php
@@ -1,114 +1,114 @@
-<?php
-
-/**
- * ElggMetadata
- * This class describes metadata that can be attached to ElggEntities.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Core
- */
-class ElggMetadata extends ElggExtender {
-	/**
-	 * Construct a new site object, optionally from a given id value or row.
-	 *
-	 * @param mixed $id
-	 */
-	function __construct($id = null) {
-		$this->attributes = array();
-
-		if (!empty($id)) {
-			// Create from db row
-			if ($id instanceof stdClass) {
-				$metadata = $id;
-			} else {
-				$metadata = get_metadata($id);
-			}
-
-			if ($metadata) {
-				$objarray = (array) $metadata;
-				foreach($objarray as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-				$this->attributes['type'] = "metadata";
-			}
-		}
-	}
-
-	/**
-	 * Class member get overloading
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	function __get($name) {
-		return $this->get($name);
-	}
-
-	/**
-	 * Class member set overloading
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @return mixed
-	 */
-	function __set($name, $value) {
-		return $this->set($name, $value);
-	}
-
-	/**
-	 * Determines whether or not the user can edit this piece of metadata
-	 *
-	 * @return true|false Depending on permissions
-	 */
-	function canEdit() {
-		if ($entity = get_entity($this->get('entity_guid'))) {
-			return $entity->canEditMetadata($this);
-		}
-		return false;
-	}
-
-	/**
-	 * Save matadata object
-	 *
-	 * @return int the metadata object id
-	 */
-	function save() {
-		if ($this->id > 0) {
-			return update_metadata($this->id, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
-		} else {
-			$this->id = create_metadata($this->entity_guid, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
-			if (!$this->id) {
-				throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
-			}
-			return $this->id;
-		}
-	}
-
-	/**
-	 * Delete a given metadata.
-	 */
-	function delete() {
-		return delete_metadata($this->id);
-	}
-
-	/**
-	 * Get a url for this item of metadata.
-	 *
-	 * @return string
-	 */
-	public function getURL() {
-		return get_metadata_url($this->id);
-	}
-
-	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * For a given ID, return the object associated with it.
-	 * This is used by the river functionality primarily.
-	 * This is useful for checking access permissions etc on objects.
-	 */
-	public function getObjectFromID($id) {
-		return get_metadata($id);
-	}
+<?php
+
+/**
+ * ElggMetadata
+ * This class describes metadata that can be attached to ElggEntities.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Core
+ */
+class ElggMetadata extends ElggExtender {
+	/**
+	 * Construct a new site object, optionally from a given id value or row.
+	 *
+	 * @param mixed $id
+	 */
+	function __construct($id = null) {
+		$this->attributes = array();
+
+		if (!empty($id)) {
+			// Create from db row
+			if ($id instanceof stdClass) {
+				$metadata = $id;
+			} else {
+				$metadata = get_metadata($id);
+			}
+
+			if ($metadata) {
+				$objarray = (array) $metadata;
+				foreach($objarray as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+				$this->attributes['type'] = "metadata";
+			}
+		}
+	}
+
+	/**
+	 * Class member get overloading
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	function __get($name) {
+		return $this->get($name);
+	}
+
+	/**
+	 * Class member set overloading
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @return mixed
+	 */
+	function __set($name, $value) {
+		return $this->set($name, $value);
+	}
+
+	/**
+	 * Determines whether or not the user can edit this piece of metadata
+	 *
+	 * @return true|false Depending on permissions
+	 */
+	function canEdit() {
+		if ($entity = get_entity($this->get('entity_guid'))) {
+			return $entity->canEditMetadata($this);
+		}
+		return false;
+	}
+
+	/**
+	 * Save matadata object
+	 *
+	 * @return int the metadata object id
+	 */
+	function save() {
+		if ($this->id > 0) {
+			return update_metadata($this->id, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
+		} else {
+			$this->id = create_metadata($this->entity_guid, $this->name, $this->value, $this->value_type, $this->owner_guid, $this->access_id);
+			if (!$this->id) {
+				throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
+			}
+			return $this->id;
+		}
+	}
+
+	/**
+	 * Delete a given metadata.
+	 */
+	function delete() {
+		return delete_metadata($this->id);
+	}
+
+	/**
+	 * Get a url for this item of metadata.
+	 *
+	 * @return string
+	 */
+	public function getURL() {
+		return get_metadata_url($this->id);
+	}
+
+	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * For a given ID, return the object associated with it.
+	 * This is used by the river functionality primarily.
+	 * This is useful for checking access permissions etc on objects.
+	 */
+	public function getObjectFromID($id) {
+		return get_metadata($id);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggObject.php b/engine/classes/ElggObject.php
index 0bdfb064f..50ebe2d2d 100644
--- a/engine/classes/ElggObject.php
+++ b/engine/classes/ElggObject.php
@@ -1,220 +1,220 @@
-<?php
-/**
- * Elgg Object
- *
- * Elgg objects are the most common means of storing information in the database.
- * They are a child class of ElggEntity, so receive all the benefits of the Entities,
- * but also include a title and description field.
- *
- * An ElggObject represents a row from the objects_entity table, as well
- * as the related row in the entities table as represented by the parent
- * ElggEntity object.
- *
- * @internal Title and description are stored in the objects_entity table.
- *
- * @package Elgg.Core
- * @subpackage DataModel.Object
- */
-class ElggObject extends ElggEntity {
-	/**
-	 * Initialise the attributes array to include the type,
-	 * title, and description.
-	 */
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['type'] = "object";
-		$this->attributes['title'] = "";
-		$this->attributes['description'] = "";
-		$this->attributes['tables_split'] = 2;
-	}
-
-	/**
-	 * Load or create a new ElggObject.
-	 *
-	 * If no arguments are passed, create a new entity.
-	 * If an argument is passed as an int, attempt to load that object by guid.
-	 * If an argument is passed as an object, assume that it is as database result object and attempt to load
-	 * by $obj->guid.
-	 *
-	 * @param mixed $guid If an int, load that GUID.  If a db row then will attempt to load the rest of the data.
-	 * @throws IOException If passed an incorrect guid
-	 * @throws InvalidParameterException If passed an Elgg* Entity that isn't an ElggObject
-	 */
-	function __construct($guid = null) {
-		$this->initialise_attributes();
-
-		if (!empty($guid)) {
-			// Is $guid is a DB row - either a entity row, or a object table row.
-			if ($guid instanceof stdClass) {
-				// Load the rest
-				if (!$this->load($guid->guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
-				}
-			}
-
-			// Is $guid is an ElggObject? Use a copy constructor
-			else if ($guid instanceof ElggObject) {
-				elgg_deprecated_notice('This type of usage of the ElggObject constructor was deprecated. Please use the clone method.', 1.7);
-
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-
-			// Is this is an ElggEntity but not an ElggObject = ERROR!
-			else if ($guid instanceof ElggEntity) {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggObject'));
-			}
-
-			// We assume if we have got this far, $guid is an int
-			else if (is_numeric($guid)) {
-				if (!$this->load($guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
-				}
-			}
-
-			else {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
-			}
-		}
-	}
-
-	/**
-	 * Loads the full ElggObject when given a guid.
-	 *
-	 * @param int $guid
-	 * @return bool
-	 * @throws InvalidClassException
-	 */
-	protected function load($guid) {
-		// Test to see if we have the generic stuff
-		if (!parent::load($guid)) {
-			return false;
-		}
-
-		// Check the type
-		if ($this->attributes['type']!='object') {
-			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
-		}
-
-		// Load missing data
-		$row = get_object_entity_as_row($guid);
-		if (($row) && (!$this->isFullyLoaded())) {
-			// If $row isn't a cached copy then increment the counter
-			$this->attributes['tables_loaded'] ++;
-		}
-
-		// Now put these into the attributes array as core values
-		$objarray = (array) $row;
-		foreach($objarray as $key => $value) {
-			$this->attributes[$key] = $value;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Saves object-specific attributes.
-	 *
-	 * @internal Object attributes are saved in the objects_entity table.
-	 *
-	 * @return bool
-	 */
-	public function save() {
-		// Save ElggEntity attributes
-		if (!parent::save()) {
-			return false;
-		}
-
-		// Save ElggObject-specific attributes
-		return create_object_entity($this->get('guid'), $this->get('title'), $this->get('description'), $this->get('container_guid'));
-	}
-
-	/**
-	 * Return sites that this object is a member of
-	 *
-	 * Site membership is determined by relationships and not site_guid.d
-	 *
-	 * @param string $subtype Optionally, the subtype of result we want to limit to
-	 * @param int $limit The number of results to return
-	 * @param int $offset Any indexing offset
-	 * @todo This should be moved to ElggEntity
-	 * @todo Unimplemented
-	 */
-	function getSites($subtype="", $limit = 10, $offset = 0) {
-		return get_site_objects($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Add this object to a site
-	 *
-	 * @param int $site_guid The guid of the site to add it to
-	 * @return bool
-	 */
-	function addToSite($site_guid) {
-		return add_site_object($this->getGUID(), $site_guid);
-	}
-
-	/**
-	 * Set the container for this object.
-	 *
-	 * @param int $container_guid The ID of the container.
-	 * @return bool
-	 */
-	function setContainer($container_guid) {
-		$container_guid = (int)$container_guid;
-
-		return $this->set('container_guid', $container_guid);
-	}
-
-	/**
-	 * Returns the container GUID of this object.
-	 *
-	 * @return int
-	 */
-	function getContainer() {
-		return $this->get('container_guid');
-	}
-
-	/**
-	 * Returns the contain entity for this object.
-	 *
-	 * @return mixed ElggGroup object or false.
-	 */
-	function getContainerEntity() {
-		$result = get_entity($this->getContainer());
-
-		if (($result) && ($result instanceof ElggGroup)) {
-			return $result;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Get the collections associated with a object.
-	 *
-	 * @param string $subtype Optionally, the subtype of result we want to limit to
-	 * @param int $limit The number of results to return
-	 * @param int $offset Any indexing offset
-	 * @return unknown
-	 */
-	//public function getCollections($subtype="", $limit = 10, $offset = 0) { get_object_collections($this->getGUID(), $subtype, $limit, $offset); }
-
-	/*
-	 * EXPORTABLE INTERFACE
-	 */
-
-	/**
-	 * Return an array of fields which can be exported.
-	 *
-	 * @return array
-	 */
-	public function getExportableValues() {
-		return array_merge(parent::getExportableValues(), array(
-			'title',
-			'description',
-		));
-	}
+<?php
+/**
+ * Elgg Object
+ *
+ * Elgg objects are the most common means of storing information in the database.
+ * They are a child class of ElggEntity, so receive all the benefits of the Entities,
+ * but also include a title and description field.
+ *
+ * An ElggObject represents a row from the objects_entity table, as well
+ * as the related row in the entities table as represented by the parent
+ * ElggEntity object.
+ *
+ * @internal Title and description are stored in the objects_entity table.
+ *
+ * @package Elgg.Core
+ * @subpackage DataModel.Object
+ */
+class ElggObject extends ElggEntity {
+	/**
+	 * Initialise the attributes array to include the type,
+	 * title, and description.
+	 */
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['type'] = "object";
+		$this->attributes['title'] = "";
+		$this->attributes['description'] = "";
+		$this->attributes['tables_split'] = 2;
+	}
+
+	/**
+	 * Load or create a new ElggObject.
+	 *
+	 * If no arguments are passed, create a new entity.
+	 * If an argument is passed as an int, attempt to load that object by guid.
+	 * If an argument is passed as an object, assume that it is as database result object and attempt to load
+	 * by $obj->guid.
+	 *
+	 * @param mixed $guid If an int, load that GUID.  If a db row then will attempt to load the rest of the data.
+	 * @throws IOException If passed an incorrect guid
+	 * @throws InvalidParameterException If passed an Elgg* Entity that isn't an ElggObject
+	 */
+	function __construct($guid = null) {
+		$this->initialise_attributes();
+
+		if (!empty($guid)) {
+			// Is $guid is a DB row - either a entity row, or a object table row.
+			if ($guid instanceof stdClass) {
+				// Load the rest
+				if (!$this->load($guid->guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
+				}
+			}
+
+			// Is $guid is an ElggObject? Use a copy constructor
+			else if ($guid instanceof ElggObject) {
+				elgg_deprecated_notice('This type of usage of the ElggObject constructor was deprecated. Please use the clone method.', 1.7);
+
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+
+			// Is this is an ElggEntity but not an ElggObject = ERROR!
+			else if ($guid instanceof ElggEntity) {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggObject'));
+			}
+
+			// We assume if we have got this far, $guid is an int
+			else if (is_numeric($guid)) {
+				if (!$this->load($guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
+				}
+			}
+
+			else {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
+			}
+		}
+	}
+
+	/**
+	 * Loads the full ElggObject when given a guid.
+	 *
+	 * @param int $guid
+	 * @return bool
+	 * @throws InvalidClassException
+	 */
+	protected function load($guid) {
+		// Test to see if we have the generic stuff
+		if (!parent::load($guid)) {
+			return false;
+		}
+
+		// Check the type
+		if ($this->attributes['type']!='object') {
+			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
+		}
+
+		// Load missing data
+		$row = get_object_entity_as_row($guid);
+		if (($row) && (!$this->isFullyLoaded())) {
+			// If $row isn't a cached copy then increment the counter
+			$this->attributes['tables_loaded'] ++;
+		}
+
+		// Now put these into the attributes array as core values
+		$objarray = (array) $row;
+		foreach($objarray as $key => $value) {
+			$this->attributes[$key] = $value;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Saves object-specific attributes.
+	 *
+	 * @internal Object attributes are saved in the objects_entity table.
+	 *
+	 * @return bool
+	 */
+	public function save() {
+		// Save ElggEntity attributes
+		if (!parent::save()) {
+			return false;
+		}
+
+		// Save ElggObject-specific attributes
+		return create_object_entity($this->get('guid'), $this->get('title'), $this->get('description'), $this->get('container_guid'));
+	}
+
+	/**
+	 * Return sites that this object is a member of
+	 *
+	 * Site membership is determined by relationships and not site_guid.d
+	 *
+	 * @param string $subtype Optionally, the subtype of result we want to limit to
+	 * @param int $limit The number of results to return
+	 * @param int $offset Any indexing offset
+	 * @todo This should be moved to ElggEntity
+	 * @todo Unimplemented
+	 */
+	function getSites($subtype="", $limit = 10, $offset = 0) {
+		return get_site_objects($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Add this object to a site
+	 *
+	 * @param int $site_guid The guid of the site to add it to
+	 * @return bool
+	 */
+	function addToSite($site_guid) {
+		return add_site_object($this->getGUID(), $site_guid);
+	}
+
+	/**
+	 * Set the container for this object.
+	 *
+	 * @param int $container_guid The ID of the container.
+	 * @return bool
+	 */
+	function setContainer($container_guid) {
+		$container_guid = (int)$container_guid;
+
+		return $this->set('container_guid', $container_guid);
+	}
+
+	/**
+	 * Returns the container GUID of this object.
+	 *
+	 * @return int
+	 */
+	function getContainer() {
+		return $this->get('container_guid');
+	}
+
+	/**
+	 * Returns the contain entity for this object.
+	 *
+	 * @return mixed ElggGroup object or false.
+	 */
+	function getContainerEntity() {
+		$result = get_entity($this->getContainer());
+
+		if (($result) && ($result instanceof ElggGroup)) {
+			return $result;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Get the collections associated with a object.
+	 *
+	 * @param string $subtype Optionally, the subtype of result we want to limit to
+	 * @param int $limit The number of results to return
+	 * @param int $offset Any indexing offset
+	 * @return unknown
+	 */
+	//public function getCollections($subtype="", $limit = 10, $offset = 0) { get_object_collections($this->getGUID(), $subtype, $limit, $offset); }
+
+	/*
+	 * EXPORTABLE INTERFACE
+	 */
+
+	/**
+	 * Return an array of fields which can be exported.
+	 *
+	 * @return array
+	 */
+	public function getExportableValues() {
+		return array_merge(parent::getExportableValues(), array(
+			'title',
+			'description',
+		));
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggPlugin.php b/engine/classes/ElggPlugin.php
index c666b8438..3bbbc02fe 100644
--- a/engine/classes/ElggPlugin.php
+++ b/engine/classes/ElggPlugin.php
@@ -1,66 +1,66 @@
-<?php
-/**
- * Stores site-side plugin settings as private data.
- *
- * This class is currently a stub, allowing a plugin to
- * save settings in an object's private settings for each site.
- *
- * @package Elgg.Core
- * @subpackage Plugins.Settings
- */
-class ElggPlugin extends ElggObject {
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['subtype'] = "plugin";
-	}
-
-	public function __construct($guid = null) {
-		parent::__construct($guid);
-	}
-
-	/**
-	 * Get a value from private settings.
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	public function get($name) {
-		// See if its in our base attribute
-		if (isset($this->attributes[$name])) {
-			return $this->attributes[$name];
-		}
-
-		// No, so see if its in the private data store.
-		// get_private_setting() returns false if it doesn't exist
-		$meta = get_private_setting($this->guid, $name);
-
-		if ($meta === false) {
-			// Can't find it, so return null
-			return NULL;
-		}
-
-		return $meta;
-	}
-
-	/**
-	 * Save a value to private settings.
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 */
-	public function set($name, $value) {
-		if (array_key_exists($name, $this->attributes)) {
-			// Check that we're not trying to change the guid!
-			if ((array_key_exists('guid', $this->attributes)) && ($name=='guid')) {
-				return false;
-			}
-
-			$this->attributes[$name] = $value;
-		} else {
-			return set_private_setting($this->guid, $name, $value);
-		}
-
-		return true;
-	}
+<?php
+/**
+ * Stores site-side plugin settings as private data.
+ *
+ * This class is currently a stub, allowing a plugin to
+ * save settings in an object's private settings for each site.
+ *
+ * @package Elgg.Core
+ * @subpackage Plugins.Settings
+ */
+class ElggPlugin extends ElggObject {
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['subtype'] = "plugin";
+	}
+
+	public function __construct($guid = null) {
+		parent::__construct($guid);
+	}
+
+	/**
+	 * Get a value from private settings.
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	public function get($name) {
+		// See if its in our base attribute
+		if (isset($this->attributes[$name])) {
+			return $this->attributes[$name];
+		}
+
+		// No, so see if its in the private data store.
+		// get_private_setting() returns false if it doesn't exist
+		$meta = get_private_setting($this->guid, $name);
+
+		if ($meta === false) {
+			// Can't find it, so return null
+			return NULL;
+		}
+
+		return $meta;
+	}
+
+	/**
+	 * Save a value to private settings.
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 */
+	public function set($name, $value) {
+		if (array_key_exists($name, $this->attributes)) {
+			// Check that we're not trying to change the guid!
+			if ((array_key_exists('guid', $this->attributes)) && ($name=='guid')) {
+				return false;
+			}
+
+			$this->attributes[$name] = $value;
+		} else {
+			return set_private_setting($this->guid, $name, $value);
+		}
+
+		return true;
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggRelationship.php b/engine/classes/ElggRelationship.php
index e7574eb3b..f90c1bb50 100644
--- a/engine/classes/ElggRelationship.php
+++ b/engine/classes/ElggRelationship.php
@@ -1,285 +1,285 @@
-<?php
-/**
- * Relationship class.
- *
- * @package Elgg.Core
- * @subpackage Core
- */
-class ElggRelationship implements
-	Importable,
-	Exportable,
-	Loggable,	// Can events related to this object class be logged
-	Iterator,	// Override foreach behaviour
-	ArrayAccess // Override for array access
-	{
-	/**
-	 * This contains the site's main properties (id, etc)
-	 * @var array
-	 */
-	protected $attributes;
-
-	/**
-	 * Construct a new site object, optionally from a given id value or row.
-	 *
-	 * @param mixed $id
-	 */
-	function __construct($id = null) {
-		$this->attributes = array();
-
-		if (!empty($id)) {
-			if ($id instanceof stdClass) {
-				$relationship = $id; // Create from db row
-			} else {
-				$relationship = get_relationship($id);
-			}
-
-			if ($relationship) {
-				$objarray = (array) $relationship;
-				foreach($objarray as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-		}
-	}
-
-	/**
-	 * Class member get overloading
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	function __get($name) {
-		if (isset($this->attributes[$name])) {
-			return $this->attributes[$name];
-		}
-
-		return null;
-	}
-
-	/**
-	 * Class member set overloading
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @return mixed
-	 */
-	function __set($name, $value) {
-		$this->attributes[$name] = $value;
-		return true;
-	}
-
-	/**
-	 * Save the relationship
-	 *
-	 * @return int the relationship id
-	 */
-	public function save() {
-		if ($this->id > 0) {
-			delete_relationship($this->id);
-		}
-
-		$this->id = add_entity_relationship($this->guid_one, $this->relationship, $this->guid_two);
-		if (!$this->id) {
-			throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
-		}
-
-		return $this->id;
-	}
-
-	/**
-	 * Delete a given relationship.
-	 */
-	public function delete() {
-		return delete_relationship($this->id);
-	}
-
-	/**
-	 * Get a URL for this relationship.
-	 *
-	 * @return string
-	 */
-	public function getURL() {
-		return get_relationship_url($this->id);
-	}
-
-	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Return an array of fields which can be exported.
-	 */
-	public function getExportableValues() {
-		return array(
-			'id',
-			'guid_one',
-			'relationship',
-			'guid_two'
-		);
-	}
-
-	/**
-	 * Export this relationship
-	 *
-	 * @return array
-	 */
-	public function export() {
-		$uuid = get_uuid_from_object($this);
-		$relationship = new ODDRelationship(
-			guid_to_uuid($this->guid_one),
-			$this->relationship,
-			guid_to_uuid($this->guid_two)
-		);
-
-		$relationship->setAttribute('uuid', $uuid);
-
-		return $relationship;
-	}
-
-	// IMPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Import a relationship
-	 *
-	 * @param array $data
-	 * @param int $version
-	 * @return ElggRelationship
-	 * @throws ImportException
-	 */
-	public function import(ODD $data) {
-		if (!($element instanceof ODDRelationship)) {
-			throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnexpectedODDClass'));
-		}
-
-		$uuid_one = $data->getAttribute('uuid1');
-		$uuid_two = $data->getAttribute('uuid2');
-
-		// See if this entity has already been imported, if so then we need to link to it
-		$entity1 = get_entity_from_uuid($uuid_one);
-		$entity2 = get_entity_from_uuid($uuid_two);
-		if (($entity1) && ($entity2)) {
-			// Set the item ID
-			$this->attributes['guid_one'] = $entity1->getGUID();
-			$this->attributes['guid_two'] = $entity2->getGUID();
-
-			// Map verb to relationship
-			//$verb = $data->getAttribute('verb');
-			//$relationship = get_relationship_from_verb($verb);
-			$relationship = $data->getAttribute('type');
-
-			if ($relationship) {
-				$this->attributes['relationship'] = $relationship;
-				// save
-				$result = $this->save();
-				if (!$result) {
-					throw new ImportException(sprintf(elgg_echo('ImportException:ProblemSaving'), get_class()));
-				}
-
-				return $this;
-			}
-		}
-	}
-
-	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Return an identification for the object for storage in the system log.
-	 * This id must be an integer.
-	 *
-	 * @return int
-	 */
-	public function getSystemLogID() {
-		return $this->id;
-	}
-
-	/**
-	 * Return the class name of the object.
-	 */
-	public function getClassName() {
-		return get_class($this);
-	}
-
-	/**
-	 * For a given ID, return the object associated with it.
-	 * This is used by the river functionality primarily.
-	 * This is useful for checking access permissions etc on objects.
-	 */
-	public function getObjectFromID($id) {
-		return get_relationship($id);
-	}
-
-	/**
-	 * Return the GUID of the owner of this object.
-	 */
-	public function getObjectOwnerGUID() {
-		return $this->owner_guid;
-	}
-
-	/**
-	 * Return a type of the object - eg. object, group, user, relationship, metadata, annotation etc
-	 */
-	public function getType() {
-		return 'relationship';
-	}
-
-	/**
-	 * Return a subtype. For metadata & annotations this is the 'name' and for relationship this is the relationship type.
-	 */
-	public function getSubtype() {
-		return $this->relationship;
-	}
-
-	// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
-	/*
-	 * This lets an entity's attributes be displayed using foreach as a normal array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-
-	private $valid = FALSE;
-
-	function rewind() {
-		$this->valid = (FALSE !== reset($this->attributes));
-	}
-
-	function current() {
-		return current($this->attributes);
-	}
-
-	function key() {
-		return key($this->attributes);
-	}
-
-	function next() {
-		$this->valid = (FALSE !== next($this->attributes));
-	}
-
-	function valid() {
-		return $this->valid;
-	}
-
-	// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
-	/*
-	 * This lets an entity's attributes be accessed like an associative array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-
-	function offsetSet($key, $value) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			$this->attributes[$key] = $value;
-		}
-	}
-
-	function offsetGet($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			return $this->attributes[$key];
-		}
-	}
-
-	function offsetUnset($key) {
-		if ( array_key_exists($key, $this->attributes) ) {
-			$this->attributes[$key] = ""; // Full unsetting is dangerious for our objects
-		}
-	}
-
-	function offsetExists($offset) {
-		return array_key_exists($offset, $this->attributes);
-	}
+<?php
+/**
+ * Relationship class.
+ *
+ * @package Elgg.Core
+ * @subpackage Core
+ */
+class ElggRelationship implements
+	Importable,
+	Exportable,
+	Loggable,	// Can events related to this object class be logged
+	Iterator,	// Override foreach behaviour
+	ArrayAccess // Override for array access
+	{
+	/**
+	 * This contains the site's main properties (id, etc)
+	 * @var array
+	 */
+	protected $attributes;
+
+	/**
+	 * Construct a new site object, optionally from a given id value or row.
+	 *
+	 * @param mixed $id
+	 */
+	function __construct($id = null) {
+		$this->attributes = array();
+
+		if (!empty($id)) {
+			if ($id instanceof stdClass) {
+				$relationship = $id; // Create from db row
+			} else {
+				$relationship = get_relationship($id);
+			}
+
+			if ($relationship) {
+				$objarray = (array) $relationship;
+				foreach($objarray as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+		}
+	}
+
+	/**
+	 * Class member get overloading
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	function __get($name) {
+		if (isset($this->attributes[$name])) {
+			return $this->attributes[$name];
+		}
+
+		return null;
+	}
+
+	/**
+	 * Class member set overloading
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @return mixed
+	 */
+	function __set($name, $value) {
+		$this->attributes[$name] = $value;
+		return true;
+	}
+
+	/**
+	 * Save the relationship
+	 *
+	 * @return int the relationship id
+	 */
+	public function save() {
+		if ($this->id > 0) {
+			delete_relationship($this->id);
+		}
+
+		$this->id = add_entity_relationship($this->guid_one, $this->relationship, $this->guid_two);
+		if (!$this->id) {
+			throw new IOException(sprintf(elgg_echo('IOException:UnableToSaveNew'), get_class()));
+		}
+
+		return $this->id;
+	}
+
+	/**
+	 * Delete a given relationship.
+	 */
+	public function delete() {
+		return delete_relationship($this->id);
+	}
+
+	/**
+	 * Get a URL for this relationship.
+	 *
+	 * @return string
+	 */
+	public function getURL() {
+		return get_relationship_url($this->id);
+	}
+
+	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an array of fields which can be exported.
+	 */
+	public function getExportableValues() {
+		return array(
+			'id',
+			'guid_one',
+			'relationship',
+			'guid_two'
+		);
+	}
+
+	/**
+	 * Export this relationship
+	 *
+	 * @return array
+	 */
+	public function export() {
+		$uuid = get_uuid_from_object($this);
+		$relationship = new ODDRelationship(
+			guid_to_uuid($this->guid_one),
+			$this->relationship,
+			guid_to_uuid($this->guid_two)
+		);
+
+		$relationship->setAttribute('uuid', $uuid);
+
+		return $relationship;
+	}
+
+	// IMPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Import a relationship
+	 *
+	 * @param array $data
+	 * @param int $version
+	 * @return ElggRelationship
+	 * @throws ImportException
+	 */
+	public function import(ODD $data) {
+		if (!($element instanceof ODDRelationship)) {
+			throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnexpectedODDClass'));
+		}
+
+		$uuid_one = $data->getAttribute('uuid1');
+		$uuid_two = $data->getAttribute('uuid2');
+
+		// See if this entity has already been imported, if so then we need to link to it
+		$entity1 = get_entity_from_uuid($uuid_one);
+		$entity2 = get_entity_from_uuid($uuid_two);
+		if (($entity1) && ($entity2)) {
+			// Set the item ID
+			$this->attributes['guid_one'] = $entity1->getGUID();
+			$this->attributes['guid_two'] = $entity2->getGUID();
+
+			// Map verb to relationship
+			//$verb = $data->getAttribute('verb');
+			//$relationship = get_relationship_from_verb($verb);
+			$relationship = $data->getAttribute('type');
+
+			if ($relationship) {
+				$this->attributes['relationship'] = $relationship;
+				// save
+				$result = $this->save();
+				if (!$result) {
+					throw new ImportException(sprintf(elgg_echo('ImportException:ProblemSaving'), get_class()));
+				}
+
+				return $this;
+			}
+		}
+	}
+
+	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an identification for the object for storage in the system log.
+	 * This id must be an integer.
+	 *
+	 * @return int
+	 */
+	public function getSystemLogID() {
+		return $this->id;
+	}
+
+	/**
+	 * Return the class name of the object.
+	 */
+	public function getClassName() {
+		return get_class($this);
+	}
+
+	/**
+	 * For a given ID, return the object associated with it.
+	 * This is used by the river functionality primarily.
+	 * This is useful for checking access permissions etc on objects.
+	 */
+	public function getObjectFromID($id) {
+		return get_relationship($id);
+	}
+
+	/**
+	 * Return the GUID of the owner of this object.
+	 */
+	public function getObjectOwnerGUID() {
+		return $this->owner_guid;
+	}
+
+	/**
+	 * Return a type of the object - eg. object, group, user, relationship, metadata, annotation etc
+	 */
+	public function getType() {
+		return 'relationship';
+	}
+
+	/**
+	 * Return a subtype. For metadata & annotations this is the 'name' and for relationship this is the relationship type.
+	 */
+	public function getSubtype() {
+		return $this->relationship;
+	}
+
+	// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
+	/*
+	 * This lets an entity's attributes be displayed using foreach as a normal array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+
+	private $valid = FALSE;
+
+	function rewind() {
+		$this->valid = (FALSE !== reset($this->attributes));
+	}
+
+	function current() {
+		return current($this->attributes);
+	}
+
+	function key() {
+		return key($this->attributes);
+	}
+
+	function next() {
+		$this->valid = (FALSE !== next($this->attributes));
+	}
+
+	function valid() {
+		return $this->valid;
+	}
+
+	// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
+	/*
+	 * This lets an entity's attributes be accessed like an associative array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+
+	function offsetSet($key, $value) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = $value;
+		}
+	}
+
+	function offsetGet($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			return $this->attributes[$key];
+		}
+	}
+
+	function offsetUnset($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = ""; // Full unsetting is dangerious for our objects
+		}
+	}
+
+	function offsetExists($offset) {
+		return array_key_exists($offset, $this->attributes);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggSession.php b/engine/classes/ElggSession.php
index 874502579..e34f7a961 100644
--- a/engine/classes/ElggSession.php
+++ b/engine/classes/ElggSession.php
@@ -1,95 +1,95 @@
-<?php
-/**
- * Magic session class.
- * This class is intended to extend the $_SESSION magic variable by providing an API hook
- * to plug in other values.
- *
- * Primarily this is intended to provide a way of supplying "logged in user" details without touching the session
- * (which can cause problems when accessed server side).
- *
- * If a value is present in the session then that value is returned, otherwise a plugin hook 'session:get', '$var' is called,
- * where $var is the variable being requested.
- *
- * Setting values will store variables in the session in the normal way.
- *
- * LIMITATIONS: You can not access multidimensional arrays
- *
- * This is EXPERIMENTAL.
- */
-class ElggSession implements ArrayAccess {
-	/** Local cache of trigger retrieved variables */
-	private static $__localcache;
-
-	function __isset($key) {
-		return $this->offsetExists($key);
-	}
-
-	/** Set a value, go straight to session. */
-	function offsetSet($key, $value) {
-		$_SESSION[$key] = $value;
-	}
-
-	/**
-	 * Get a variable from either the session, or if its not in the session attempt to get it from
-	 * an api call.
-	 */
-	function offsetGet($key) {
-		if (!ElggSession::$__localcache) {
-			ElggSession::$__localcache = array();
-		}
-
-		if (isset($_SESSION[$key])) {
-			return $_SESSION[$key];
-		}
-
-		if (isset(ElggSession::$__localcache[$key])) {
-			return ElggSession::$__localcache[$key];
-		}
-
-		$value = NULL;
-		$value = trigger_plugin_hook('session:get', $key, NULL, $value);
-
-		ElggSession::$__localcache[$key] = $value;
-
-		return ElggSession::$__localcache[$key];
-	}
-
-	/**
-	* Unset a value from the cache and the session.
-	*/
-	function offsetUnset($key) {
-		unset(ElggSession::$__localcache[$key]);
-		unset($_SESSION[$key]);
-	}
-
-	/**
-	* Return whether the value is set in either the session or the cache.
-	*/
-	function offsetExists($offset) {
-		if (isset(ElggSession::$__localcache[$offset])) {
-			return true;
-		}
-
-		if (isset($_SESSION[$offset])) {
-			return true;
-		}
-
-		if ($this->offsetGet($offset)){
-			return true;
-		}
-	}
-
-
-	// Alias functions
-	function get($key) {
-		return $this->offsetGet($key);
-	}
-
-	function set($key, $value) {
-		return $this->offsetSet($key, $value);
-	}
-
-	function del($key) {
-		return $this->offsetUnset($key);
-	}
+<?php
+/**
+ * Magic session class.
+ * This class is intended to extend the $_SESSION magic variable by providing an API hook
+ * to plug in other values.
+ *
+ * Primarily this is intended to provide a way of supplying "logged in user" details without touching the session
+ * (which can cause problems when accessed server side).
+ *
+ * If a value is present in the session then that value is returned, otherwise a plugin hook 'session:get', '$var' is called,
+ * where $var is the variable being requested.
+ *
+ * Setting values will store variables in the session in the normal way.
+ *
+ * LIMITATIONS: You can not access multidimensional arrays
+ *
+ * This is EXPERIMENTAL.
+ */
+class ElggSession implements ArrayAccess {
+	/** Local cache of trigger retrieved variables */
+	private static $__localcache;
+
+	function __isset($key) {
+		return $this->offsetExists($key);
+	}
+
+	/** Set a value, go straight to session. */
+	function offsetSet($key, $value) {
+		$_SESSION[$key] = $value;
+	}
+
+	/**
+	 * Get a variable from either the session, or if its not in the session attempt to get it from
+	 * an api call.
+	 */
+	function offsetGet($key) {
+		if (!ElggSession::$__localcache) {
+			ElggSession::$__localcache = array();
+		}
+
+		if (isset($_SESSION[$key])) {
+			return $_SESSION[$key];
+		}
+
+		if (isset(ElggSession::$__localcache[$key])) {
+			return ElggSession::$__localcache[$key];
+		}
+
+		$value = NULL;
+		$value = trigger_plugin_hook('session:get', $key, NULL, $value);
+
+		ElggSession::$__localcache[$key] = $value;
+
+		return ElggSession::$__localcache[$key];
+	}
+
+	/**
+	* Unset a value from the cache and the session.
+	*/
+	function offsetUnset($key) {
+		unset(ElggSession::$__localcache[$key]);
+		unset($_SESSION[$key]);
+	}
+
+	/**
+	* Return whether the value is set in either the session or the cache.
+	*/
+	function offsetExists($offset) {
+		if (isset(ElggSession::$__localcache[$offset])) {
+			return true;
+		}
+
+		if (isset($_SESSION[$offset])) {
+			return true;
+		}
+
+		if ($this->offsetGet($offset)){
+			return true;
+		}
+	}
+
+
+	// Alias functions
+	function get($key) {
+		return $this->offsetGet($key);
+	}
+
+	function set($key, $value) {
+		return $this->offsetSet($key, $value);
+	}
+
+	function del($key) {
+		return $this->offsetUnset($key);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggSharedMemoryCache.php b/engine/classes/ElggSharedMemoryCache.php
index cae78943e..82c9c571a 100644
--- a/engine/classes/ElggSharedMemoryCache.php
+++ b/engine/classes/ElggSharedMemoryCache.php
@@ -1,34 +1,34 @@
-<?php
-/**
- * Shared memory cache description.
- * Extends ElggCache with functions useful to shared memory style caches (static variables, memcache etc)
- */
-abstract class ElggSharedMemoryCache extends ElggCache {
-	/**
-	 * Namespace variable used to keep various bits of the cache
-	 * separate.
-	 *
-	 * @var string
-	 */
-	private $namespace;
-
-	/**
-	 * Set the namespace of this cache.
-	 * This is useful for cache types (like memcache or static variables) where there is one large
-	 * flat area of memory shared across all instances of the cache.
-	 *
-	 * @param string $namespace
-	 */
-	public function setNamespace($namespace = "default") {
-		$this->namespace = $namespace;
-	}
-
-	/**
-	 * Get the namespace currently defined.
-	 *
-	 * @return string
-	 */
-	public function getNamespace() {
-		return $this->namespace;
-	}
+<?php
+/**
+ * Shared memory cache description.
+ * Extends ElggCache with functions useful to shared memory style caches (static variables, memcache etc)
+ */
+abstract class ElggSharedMemoryCache extends ElggCache {
+	/**
+	 * Namespace variable used to keep various bits of the cache
+	 * separate.
+	 *
+	 * @var string
+	 */
+	private $namespace;
+
+	/**
+	 * Set the namespace of this cache.
+	 * This is useful for cache types (like memcache or static variables) where there is one large
+	 * flat area of memory shared across all instances of the cache.
+	 *
+	 * @param string $namespace
+	 */
+	public function setNamespace($namespace = "default") {
+		$this->namespace = $namespace;
+	}
+
+	/**
+	 * Get the namespace currently defined.
+	 *
+	 * @return string
+	 */
+	public function getNamespace() {
+		return $this->namespace;
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggSite.php b/engine/classes/ElggSite.php
index 77e26372e..06cdf70ea 100644
--- a/engine/classes/ElggSite.php
+++ b/engine/classes/ElggSite.php
@@ -1,299 +1,299 @@
-<?php
-/**
- * ElggSite
- * Representation of a "site" in the system.
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Core
- */
-class ElggSite extends ElggEntity {
-	/**
-	 * Initialise the attributes array.
-	 * This is vital to distinguish between metadata and base parameters.
-	 *
-	 * Place your base parameters here.
-	 */
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['type'] = "site";
-		$this->attributes['name'] = "";
-		$this->attributes['description'] = "";
-		$this->attributes['url'] = "";
-		$this->attributes['tables_split'] = 2;
-	}
-
-	/**
-	 * Construct a new site object, optionally from a given id value.
-	 *
-	 * @param mixed $guid If an int, load that GUID.
-	 * 	If a db row then will attempt to load the rest of the data.
-	 * @throws Exception if there was a problem creating the site.
-	 */
-	function __construct($guid = null) {
-		$this->initialise_attributes();
-
-		if (!empty($guid)) {
-			// Is $guid is a DB row - either a entity row, or a site table row.
-			if ($guid instanceof stdClass) {
-				// Load the rest
-				if (!$this->load($guid->guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
-				}
-			}
-
-			// Is $guid is an ElggSite? Use a copy constructor
-			else if ($guid instanceof ElggSite) {
-				elgg_deprecated_notice('This type of usage of the ElggSite constructor was deprecated. Please use the clone method.', 1.7);
-				
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-
-			// Is this is an ElggEntity but not an ElggSite = ERROR!
-			else if ($guid instanceof ElggEntity) {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggSite'));
-			}
-
-			// See if this is a URL
-			else if (strpos($guid, "http") !== false) {
-				$guid = get_site_by_url($guid);
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-
-			// We assume if we have got this far, $guid is an int
-			else if (is_numeric($guid)) {
-				if (!$this->load($guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
-				}
-			}
-
-			else {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
-			}
-		}
-	}
-
-	/**
-	 * Override the load function.
-	 * This function will ensure that all data is loaded (were possible), so
-	 * if only part of the ElggSite is loaded, it'll load the rest.
-	 *
-	 * @param int $guid
-	 */
-	protected function load($guid) {
-		// Test to see if we have the generic stuff
-		if (!parent::load($guid)) {
-			return false;
-		}
-
-		// Check the type
-		if ($this->attributes['type']!='site') {
-			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
-		}
-
-		// Load missing data
-		$row = get_site_entity_as_row($guid);
-		if (($row) && (!$this->isFullyLoaded())) {
-			// If $row isn't a cached copy then increment the counter
-			$this->attributes['tables_loaded'] ++;
-		}
-
-		// Now put these into the attributes array as core values
-		$objarray = (array) $row;
-		foreach($objarray as $key => $value) {
-			$this->attributes[$key] = $value;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Override the save function.
-	 */
-	public function save() {
-		// Save generic stuff
-		if (!parent::save()) {
-			return false;
-		}
-
-		// Now save specific stuff
-		return create_site_entity($this->get('guid'), $this->get('name'), $this->get('description'), $this->get('url'));
-	}
-
-	/**
-	 * Delete this site.
-	 */
-	public function delete() {
-		global $CONFIG;
-		if ($CONFIG->site->getGUID() == $this->guid) {
-			throw new SecurityException('SecurityException:deletedisablecurrentsite');
-		}
-
-		return parent::delete();
-	}
-
-	/**
-	 * Disable override to add safety rail.
-	 *
-	 * @param unknown_type $reason
-	 */
-	public function disable($reason = "") {
-		global $CONFIG;
-
-		if ($CONFIG->site->getGUID() == $this->guid) {
-			throw new SecurityException('SecurityException:deletedisablecurrentsite');
-		}
-
-		return parent::disable($reason);
-	}
-
-	/**
-	 * Return a list of users using this site.
-	 *
-	 * @param int $limit
-	 * @param int $offset
-	 * @return array of ElggUsers
-	 */
-	public function getMembers($limit = 10, $offset = 0) {
-		get_site_members($this->getGUID(), $limit, $offset);
-	}
-
-	/**
-	 * Add a user to the site.
-	 *
-	 * @param int $user_guid
-	 */
-	public function addUser($user_guid) {
-		return add_site_user($this->getGUID(), $user_guid);
-	}
-
-	/**
-	 * Remove a site user.
-	 *
-	 * @param int $user_guid
-	 */
-	public function removeUser($user_guid) {
-		return remove_site_user($this->getGUID(), $user_guid);
-	}
-
-	/**
-	 * Get an array of member ElggObjects.
-	 *
-	 * @param string $subtype
-	 * @param int $limit
-	 * @param int $offset
-	 */
-	public function getObjects($subtype="", $limit = 10, $offset = 0) {
-		get_site_objects($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Add an object to the site.
-	 *
-	 * @param int $user_id
-	 */
-	public function addObject($object_guid) {
-		return add_site_object($this->getGUID(), $object_guid);
-	}
-
-	/**
-	 * Remove a site user.
-	 *
-	 * @param int $user_id
-	 */
-	public function removeObject($object_guid) {
-		return remove_site_object($this->getGUID(), $object_guid);
-	}
-
-	/**
-	 * Get the collections associated with a site.
-	 *
-	 * @param string $type
-	 * @param int $limit
-	 * @param int $offset
-	 * @return unknown
-	 */
-	public function getCollections($subtype="", $limit = 10, $offset = 0) {
-		get_site_collections($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Return an array of fields which can be exported.
-	 */
-	public function getExportableValues() {
-		return array_merge(parent::getExportableValues(), array(
-			'name',
-			'description',
-			'url',
-		));
-	}
-	
-	public function check_walled_garden() {
-		global $CONFIG;
-		
-		if ($CONFIG->walled_garden && !isloggedin()) {
-			// hook into the index system call at the highest priority
-			register_plugin_hook('index', 'system', 'elgg_walled_garden_index', 1);
-			
-			if (!$this->is_public_page()) {
-				register_error(elgg_echo('loggedinrequired'));
-				forward();
-			}
-		}
-	}
-	
-	public function is_public_page($url='') {
-		global $CONFIG;
-		
-		if (empty($url)) {
-			$url = current_page_url();
-			
-			// do not check against URL queries
-			if ($pos = strpos($url, '?')) {
-				$url = substr($url, 0, $pos);
-			}
-		}
-		
-		// always allow index page
-		if ($url == $CONFIG->url) {
-			return TRUE;
-		}
-		
-		// default public pages
-		$defaults = array(
-			'action/login',
-			'pg/register',
-			'action/register',
-			'account/forgotten_password\.php',
-			'action/user/requestnewpassword',
-			'pg/resetpassword',
-			'upgrade\.php',
-			'xml-rpc\.php',
-			'mt/mt-xmlrpc\.cgi',
-			'_css/css\.css',
-			'_css/js\.php',
-		);
-		
-		// include a hook for plugin authors to include public pages
-		$plugins = trigger_plugin_hook('public_pages', 'walled_garden', NULL, array());
-		
-		// lookup admin-specific public pages
-		
-		// allow public pages
-		foreach (array_merge($defaults, $plugins) as $public) {
-			$pattern = "`^{$CONFIG->url}$public/*$`i";
-			if (preg_match($pattern, $url)) {
-				return TRUE;
-			}
-		}
-		
-		// non-public page
-		return FALSE;
-	}
-}
+<?php
+/**
+ * ElggSite
+ * Representation of a "site" in the system.
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Core
+ */
+class ElggSite extends ElggEntity {
+	/**
+	 * Initialise the attributes array.
+	 * This is vital to distinguish between metadata and base parameters.
+	 *
+	 * Place your base parameters here.
+	 */
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['type'] = "site";
+		$this->attributes['name'] = "";
+		$this->attributes['description'] = "";
+		$this->attributes['url'] = "";
+		$this->attributes['tables_split'] = 2;
+	}
+
+	/**
+	 * Construct a new site object, optionally from a given id value.
+	 *
+	 * @param mixed $guid If an int, load that GUID.
+	 * 	If a db row then will attempt to load the rest of the data.
+	 * @throws Exception if there was a problem creating the site.
+	 */
+	function __construct($guid = null) {
+		$this->initialise_attributes();
+
+		if (!empty($guid)) {
+			// Is $guid is a DB row - either a entity row, or a site table row.
+			if ($guid instanceof stdClass) {
+				// Load the rest
+				if (!$this->load($guid->guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
+				}
+			}
+
+			// Is $guid is an ElggSite? Use a copy constructor
+			else if ($guid instanceof ElggSite) {
+				elgg_deprecated_notice('This type of usage of the ElggSite constructor was deprecated. Please use the clone method.', 1.7);
+				
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+
+			// Is this is an ElggEntity but not an ElggSite = ERROR!
+			else if ($guid instanceof ElggEntity) {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggSite'));
+			}
+
+			// See if this is a URL
+			else if (strpos($guid, "http") !== false) {
+				$guid = get_site_by_url($guid);
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+
+			// We assume if we have got this far, $guid is an int
+			else if (is_numeric($guid)) {
+				if (!$this->load($guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
+				}
+			}
+
+			else {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
+			}
+		}
+	}
+
+	/**
+	 * Override the load function.
+	 * This function will ensure that all data is loaded (were possible), so
+	 * if only part of the ElggSite is loaded, it'll load the rest.
+	 *
+	 * @param int $guid
+	 */
+	protected function load($guid) {
+		// Test to see if we have the generic stuff
+		if (!parent::load($guid)) {
+			return false;
+		}
+
+		// Check the type
+		if ($this->attributes['type']!='site') {
+			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
+		}
+
+		// Load missing data
+		$row = get_site_entity_as_row($guid);
+		if (($row) && (!$this->isFullyLoaded())) {
+			// If $row isn't a cached copy then increment the counter
+			$this->attributes['tables_loaded'] ++;
+		}
+
+		// Now put these into the attributes array as core values
+		$objarray = (array) $row;
+		foreach($objarray as $key => $value) {
+			$this->attributes[$key] = $value;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Override the save function.
+	 */
+	public function save() {
+		// Save generic stuff
+		if (!parent::save()) {
+			return false;
+		}
+
+		// Now save specific stuff
+		return create_site_entity($this->get('guid'), $this->get('name'), $this->get('description'), $this->get('url'));
+	}
+
+	/**
+	 * Delete this site.
+	 */
+	public function delete() {
+		global $CONFIG;
+		if ($CONFIG->site->getGUID() == $this->guid) {
+			throw new SecurityException('SecurityException:deletedisablecurrentsite');
+		}
+
+		return parent::delete();
+	}
+
+	/**
+	 * Disable override to add safety rail.
+	 *
+	 * @param unknown_type $reason
+	 */
+	public function disable($reason = "") {
+		global $CONFIG;
+
+		if ($CONFIG->site->getGUID() == $this->guid) {
+			throw new SecurityException('SecurityException:deletedisablecurrentsite');
+		}
+
+		return parent::disable($reason);
+	}
+
+	/**
+	 * Return a list of users using this site.
+	 *
+	 * @param int $limit
+	 * @param int $offset
+	 * @return array of ElggUsers
+	 */
+	public function getMembers($limit = 10, $offset = 0) {
+		get_site_members($this->getGUID(), $limit, $offset);
+	}
+
+	/**
+	 * Add a user to the site.
+	 *
+	 * @param int $user_guid
+	 */
+	public function addUser($user_guid) {
+		return add_site_user($this->getGUID(), $user_guid);
+	}
+
+	/**
+	 * Remove a site user.
+	 *
+	 * @param int $user_guid
+	 */
+	public function removeUser($user_guid) {
+		return remove_site_user($this->getGUID(), $user_guid);
+	}
+
+	/**
+	 * Get an array of member ElggObjects.
+	 *
+	 * @param string $subtype
+	 * @param int $limit
+	 * @param int $offset
+	 */
+	public function getObjects($subtype="", $limit = 10, $offset = 0) {
+		get_site_objects($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Add an object to the site.
+	 *
+	 * @param int $user_id
+	 */
+	public function addObject($object_guid) {
+		return add_site_object($this->getGUID(), $object_guid);
+	}
+
+	/**
+	 * Remove a site user.
+	 *
+	 * @param int $user_id
+	 */
+	public function removeObject($object_guid) {
+		return remove_site_object($this->getGUID(), $object_guid);
+	}
+
+	/**
+	 * Get the collections associated with a site.
+	 *
+	 * @param string $type
+	 * @param int $limit
+	 * @param int $offset
+	 * @return unknown
+	 */
+	public function getCollections($subtype="", $limit = 10, $offset = 0) {
+		get_site_collections($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an array of fields which can be exported.
+	 */
+	public function getExportableValues() {
+		return array_merge(parent::getExportableValues(), array(
+			'name',
+			'description',
+			'url',
+		));
+	}
+	
+	public function check_walled_garden() {
+		global $CONFIG;
+		
+		if ($CONFIG->walled_garden && !isloggedin()) {
+			// hook into the index system call at the highest priority
+			register_plugin_hook('index', 'system', 'elgg_walled_garden_index', 1);
+			
+			if (!$this->is_public_page()) {
+				register_error(elgg_echo('loggedinrequired'));
+				forward();
+			}
+		}
+	}
+	
+	public function is_public_page($url='') {
+		global $CONFIG;
+		
+		if (empty($url)) {
+			$url = current_page_url();
+			
+			// do not check against URL queries
+			if ($pos = strpos($url, '?')) {
+				$url = substr($url, 0, $pos);
+			}
+		}
+		
+		// always allow index page
+		if ($url == $CONFIG->url) {
+			return TRUE;
+		}
+		
+		// default public pages
+		$defaults = array(
+			'action/login',
+			'pg/register',
+			'action/register',
+			'account/forgotten_password\.php',
+			'action/user/requestnewpassword',
+			'pg/resetpassword',
+			'upgrade\.php',
+			'xml-rpc\.php',
+			'mt/mt-xmlrpc\.cgi',
+			'_css/css\.css',
+			'_css/js\.php',
+		);
+		
+		// include a hook for plugin authors to include public pages
+		$plugins = trigger_plugin_hook('public_pages', 'walled_garden', NULL, array());
+		
+		// lookup admin-specific public pages
+		
+		// allow public pages
+		foreach (array_merge($defaults, $plugins) as $public) {
+			$pattern = "`^{$CONFIG->url}$public/*$`i";
+			if (preg_match($pattern, $url)) {
+				return TRUE;
+			}
+		}
+		
+		// non-public page
+		return FALSE;
+	}
+}
diff --git a/engine/classes/ElggStaticVariableCache.php b/engine/classes/ElggStaticVariableCache.php
index 0038862bd..5ace37ddf 100644
--- a/engine/classes/ElggStaticVariableCache.php
+++ b/engine/classes/ElggStaticVariableCache.php
@@ -1,66 +1,66 @@
-<?php
-/**
- * ElggStaticVariableCache
- * Dummy cache which stores values in a static array. Using this makes future replacements to other caching back
- * ends (eg memcache) much easier.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage API
- */
-class ElggStaticVariableCache extends ElggSharedMemoryCache {
-	/**
-	 * The cache.
-	 *
-	 * @var unknown_type
-	 */
-	private static $__cache;
-
-	/**
-	 * Create the variable cache.
-	 *
-	 * This function creates a variable cache in a static variable in memory, optionally with a given namespace (to avoid overlap).
-	 *
-	 * @param string $namespace The namespace for this cache to write to - note, namespaces of the same name are shared!
-	 */
-	function __construct($namespace = 'default') {
-		$this->setNamespace($namespace);
-		$this->clear();
-	}
-
-	public function save($key, $data) {
-		$namespace = $this->getNamespace();
-
-		ElggStaticVariableCache::$__cache[$namespace][$key] = $data;
-
-		return true;
-	}
-
-	public function load($key, $offset = 0, $limit = null) {
-		$namespace = $this->getNamespace();
-
-		if (isset(ElggStaticVariableCache::$__cache[$namespace][$key])) {
-			return ElggStaticVariableCache::$__cache[$namespace][$key];
-		}
-
-		return false;
-	}
-
-	public function delete($key) {
-		$namespace = $this->getNamespace();
-
-		unset(ElggStaticVariableCache::$__cache[$namespace][$key]);
-
-		return true;
-	}
-
-	public function clear() {
-		$namespace = $this->getNamespace();
-
-		if (!isset(ElggStaticVariableCache::$__cache)) {
-			ElggStaticVariableCache::$__cache = array();
-		}
-
-		ElggStaticVariableCache::$__cache[$namespace] = array();
-	}
+<?php
+/**
+ * ElggStaticVariableCache
+ * Dummy cache which stores values in a static array. Using this makes future replacements to other caching back
+ * ends (eg memcache) much easier.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage API
+ */
+class ElggStaticVariableCache extends ElggSharedMemoryCache {
+	/**
+	 * The cache.
+	 *
+	 * @var unknown_type
+	 */
+	private static $__cache;
+
+	/**
+	 * Create the variable cache.
+	 *
+	 * This function creates a variable cache in a static variable in memory, optionally with a given namespace (to avoid overlap).
+	 *
+	 * @param string $namespace The namespace for this cache to write to - note, namespaces of the same name are shared!
+	 */
+	function __construct($namespace = 'default') {
+		$this->setNamespace($namespace);
+		$this->clear();
+	}
+
+	public function save($key, $data) {
+		$namespace = $this->getNamespace();
+
+		ElggStaticVariableCache::$__cache[$namespace][$key] = $data;
+
+		return true;
+	}
+
+	public function load($key, $offset = 0, $limit = null) {
+		$namespace = $this->getNamespace();
+
+		if (isset(ElggStaticVariableCache::$__cache[$namespace][$key])) {
+			return ElggStaticVariableCache::$__cache[$namespace][$key];
+		}
+
+		return false;
+	}
+
+	public function delete($key) {
+		$namespace = $this->getNamespace();
+
+		unset(ElggStaticVariableCache::$__cache[$namespace][$key]);
+
+		return true;
+	}
+
+	public function clear() {
+		$namespace = $this->getNamespace();
+
+		if (!isset(ElggStaticVariableCache::$__cache)) {
+			ElggStaticVariableCache::$__cache = array();
+		}
+
+		ElggStaticVariableCache::$__cache[$namespace] = array();
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ElggUser.php b/engine/classes/ElggUser.php
index 001da19ed..e887b271e 100644
--- a/engine/classes/ElggUser.php
+++ b/engine/classes/ElggUser.php
@@ -1,427 +1,427 @@
-<?php
-/**
- * ElggUser
- *
- * Representation of a "user" in the system.
- *
- * @package Elgg
- * @subpackage Core
- */
-class ElggUser extends ElggEntity
-	implements Friendable {
-	/**
-	 * Initialise the attributes array.
-	 * This is vital to distinguish between metadata and base parameters.
-	 *
-	 * Place your base parameters here.
-	 */
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['type'] = "user";
-		$this->attributes['name'] = "";
-		$this->attributes['username'] = "";
-		$this->attributes['password'] = "";
-		$this->attributes['salt'] = "";
-		$this->attributes['email'] = "";
-		$this->attributes['language'] = "";
-		$this->attributes['code'] = "";
-		$this->attributes['banned'] = "no";
-		$this->attributes['admin'] = 'no';
-		$this->attributes['tables_split'] = 2;
-	}
-
-	/**
-	 * Construct a new user entity, optionally from a given id value.
-	 *
-	 * @param mixed $guid If an int, load that GUID.
-	 * 	If a db row then will attempt to load the rest of the data.
-	 * @throws Exception if there was a problem creating the user.
-	 */
-	function __construct($guid = null) {
-		$this->initialise_attributes();
-
-		if (!empty($guid)) {
-			// Is $guid is a DB row - either a entity row, or a user table row.
-			if ($guid instanceof stdClass) {
-				// Load the rest
-				if (!$this->load($guid->guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
-				}
-			}
-
-			// See if this is a username
-			else if (is_string($guid)) {
-				$guid = get_user_by_username($guid);
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-
-			// Is $guid is an ElggUser? Use a copy constructor
-			else if ($guid instanceof ElggUser) {
-				elgg_deprecated_notice('This type of usage of the ElggUser constructor was deprecated. Please use the clone method.', 1.7);
-
-				foreach ($guid->attributes as $key => $value) {
-					$this->attributes[$key] = $value;
-				}
-			}
-
-			// Is this is an ElggEntity but not an ElggUser = ERROR!
-			else if ($guid instanceof ElggEntity) {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggUser'));
-			}
-
-			// We assume if we have got this far, $guid is an int
-			else if (is_numeric($guid)) {
-				if (!$this->load($guid)) {
-					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
-				}
-			}
-
-			else {
-				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
-			}
-		}
-	}
-
-	/**
-	 * Override the load function.
-	 * This function will ensure that all data is loaded (were possible), so
-	 * if only part of the ElggUser is loaded, it'll load the rest.
-	 *
-	 * @param int $guid
-	 * @return true|false
-	 */
-	protected function load($guid) {
-		// Test to see if we have the generic stuff
-		if (!parent::load($guid)) {
-			return false;
-		}
-
-		// Check the type
-		if ($this->attributes['type']!='user') {
-			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
-		}
-
-		// Load missing data
-		$row = get_user_entity_as_row($guid);
-		if (($row) && (!$this->isFullyLoaded())) {
-			// If $row isn't a cached copy then increment the counter
-			$this->attributes['tables_loaded'] ++;
-		}
-
-		// Now put these into the attributes array as core values
-		$objarray = (array) $row;
-		foreach($objarray as $key => $value) {
-			$this->attributes[$key] = $value;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Saves this user to the database.
-	 * @return true|false
-	 */
-	public function save() {
-		// Save generic stuff
-		if (!parent::save()) {
-			return false;
-		}
-
-		// Now save specific stuff
-		return create_user_entity($this->get('guid'), $this->get('name'), $this->get('username'), $this->get('password'), $this->get('salt'), $this->get('email'), $this->get('language'), $this->get('code'));
-	}
-
-	/**
-	 * User specific override of the entity delete method.
-	 *
-	 * @return bool
-	 */
-	public function delete() {
-		global $USERNAME_TO_GUID_MAP_CACHE, $CODE_TO_GUID_MAP_CACHE;
-
-		// clear cache
-		if (isset($USERNAME_TO_GUID_MAP_CACHE[$this->username])) {
-			unset($USERNAME_TO_GUID_MAP_CACHE[$this->username]);
-		}
-		if (isset($CODE_TO_GUID_MAP_CACHE[$this->code])) {
-			unset($CODE_TO_GUID_MAP_CACHE[$this->code]);
-		}
-
-		// Delete owned data
-		clear_annotations_by_owner($this->guid);
-		clear_metadata_by_owner($this->guid);
-		clear_user_files($this);
-
-		// Delete entity
-		return parent::delete();
-	}
-
-	/**
-	 * Ban this user.
-	 *
-	 * @param string $reason Optional reason
-	 */
-	public function ban($reason = "") {
-		return ban_user($this->guid, $reason);
-	}
-
-	/**
-	 * Unban this user.
-	 */
-	public function unban()	{
-		return unban_user($this->guid);
-	}
-
-	/**
-	 * Is this user banned or not?
-	 *
-	 * @return bool
-	 */
-	public function isBanned() {
-		return $this->banned == 'yes';
-	}
-
-	/**
-	 * Is this user admin?
-	 *
-	 * @return bool
-	 */
-	public function isAdmin() {
-
-		// for backward compatibility we need to pull this directly
-		// from the attributes instead of using the magic methods.
-		// this can be removed in 1.9
-		// return $this->admin == 'yes';
-		return $this->attributes['admin'] == 'yes';
-	}
-
-	/**
-	 * Make the user an admin
-	 *
-	 * @return bool
-	 */
-	public function makeAdmin() {
-		if (make_user_admin($this->guid)) {
-			$this->attributes['admin'] = 'yes';
-			return TRUE;
-		}
-		return FALSE;
-	}
-
-	/**
-	 * Remove the admin flag for user
-	 *
-	 * @return bool
-	 */
-	public function removeAdmin() {
-		if (remove_user_admin($this->guid)) {
-			$this->attributes['admin'] = 'no';
-			return TRUE;
-		}
-		return FALSE;
-	}
-
-	/**
-	 * Get sites that this user is a member of
-	 *
-	 * @param string $subtype Optionally, the subtype of result we want to limit to
-	 * @param int $limit The number of results to return
-	 * @param int $offset Any indexing offset
-	 */
-	function getSites($subtype="", $limit = 10, $offset = 0) {
-		// return get_site_users($this->getGUID(), $subtype, $limit, $offset);
-		return get_user_sites($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Add this user to a particular site
-	 *
-	 * @param int $site_guid The guid of the site to add it to
-	 * @return true|false
-	 */
-	function addToSite($site_guid) {
-		// return add_site_user($this->getGUID(), $site_guid);
-		return add_site_user($site_guid, $this->getGUID());
-	}
-
-	/**
-	 * Remove this user from a particular site
-	 *
-	 * @param int $site_guid The guid of the site to remove it from
-	 * @return true|false
-	 */
-	function removeFromSite($site_guid) {
-		//return remove_site_user($this->getGUID(), $site_guid);
-		return remove_site_user($site_guid, $this->getGUID());
-	}
-
-	/**
-	 * Adds a user to this user's friends list
-	 *
-	 * @param int $friend_guid The GUID of the user to add
-	 * @return true|false Depending on success
-	 */
-	function addFriend($friend_guid) {
-		return user_add_friend($this->getGUID(), $friend_guid);
-	}
-
-	/**
-	 * Removes a user from this user's friends list
-	 *
-	 * @param int $friend_guid The GUID of the user to remove
-	 * @return true|false Depending on success
-	 */
-	function removeFriend($friend_guid) {
-		return user_remove_friend($this->getGUID(), $friend_guid);
-	}
-
-	/**
-	 * Determines whether or not this user is a friend of the currently logged in user
-	 *
-	 * @return true|false
-	 */
-	function isFriend() {
-		return user_is_friend(get_loggedin_userid(), $this->getGUID());
-	}
-
-	/**
-	 * Determines whether this user is friends with another user
-	 *
-	 * @param int $user_guid The GUID of the user to check is on this user's friends list
-	 * @return true|false
-	 */
-	function isFriendsWith($user_guid) {
-		return user_is_friend($this->getGUID(), $user_guid);
-	}
-
-	/**
-	 * Determines whether or not this user is on another user's friends list
-	 *
-	 * @param int $user_guid The GUID of the user to check against
-	 * @return true|false
-	 */
-	function isFriendOf($user_guid) {
-		return user_is_friend($user_guid, $this->getGUID());
-	}
-
-	/**
-	 * Retrieves a list of this user's friends
-	 *
-	 * @param string $subtype Optionally, the subtype of user to filter to (leave blank for all)
-	 * @param int $limit The number of users to retrieve
-	 * @param int $offset Indexing offset, if any
-	 * @return array|false Array of ElggUsers, or false, depending on success
-	 */
-	function getFriends($subtype = "", $limit = 10, $offset = 0) {
-		return get_user_friends($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Retrieves a list of people who have made this user a friend
-	 *
-	 * @param string $subtype Optionally, the subtype of user to filter to (leave blank for all)
-	 * @param int $limit The number of users to retrieve
-	 * @param int $offset Indexing offset, if any
-	 * @return array|false Array of ElggUsers, or false, depending on success
-	 */
-	function getFriendsOf($subtype = "", $limit = 10, $offset = 0) {
-		return get_user_friends_of($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Get an array of ElggObjects owned by this user.
-	 *
-	 * @param string $subtype The subtype of the objects, if any
-	 * @param int $limit Number of results to return
-	 * @param int $offset Any indexing offset
-	 */
-	public function getObjects($subtype="", $limit = 10, $offset = 0) {
-		return get_user_objects($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Get an array of ElggObjects owned by this user's friends.
-	 *
-	 * @param string $subtype The subtype of the objects, if any
-	 * @param int $limit Number of results to return
-	 * @param int $offset Any indexing offset
-	 */
-	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0) {
-		return get_user_friends_objects($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * Counts the number of ElggObjects owned by this user
-	 *
-	 * @param string $subtype The subtypes of the objects, if any
-	 * @return int The number of ElggObjects
-	 */
-	public function countObjects($subtype = "") {
-		return count_user_objects($this->getGUID(), $subtype);
-	}
-
-	/**
-	 * Get the collections associated with a user.
-	 *
-	 * @param string $subtype Optionally, the subtype of result we want to limit to
-	 * @param int $limit The number of results to return
-	 * @param int $offset Any indexing offset
-	 * @return unknown
-	 */
-	public function getCollections($subtype="", $limit = 10, $offset = 0) {
-		return get_user_collections($this->getGUID(), $subtype, $limit, $offset);
-	}
-
-	/**
-	 * If a user's owner is blank, return its own GUID as the owner
-	 *
-	 * @return int User GUID
-	 */
-	function getOwner() {
-		if ($this->owner_guid == 0) {
-			return $this->getGUID();
-		}
-
-		return $this->owner_guid;
-	}
-
-	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-
-	/**
-	 * Return an array of fields which can be exported.
-	 */
-	public function getExportableValues() {
-		return array_merge(parent::getExportableValues(), array(
-			'name',
-			'username',
-			'language',
-		));
-	}
-
-	// backward compatibility with admin flag
-	// remove for 1.9
-	public function __set($name, $value) {
-		if ($name == 'admin' || $name == 'siteadmin') {
-			elgg_deprecated_notice('The admin/siteadmin metadata are not longer used.  Use ElggUser->makeAdmin() and ElggUser->removeAdmin().', '1.7.1');
-
-			if ($value == 'yes' || $value == '1') {
-				$this->makeAdmin();
-			} else {
-				$this->removeAdmin();
-			}
-		}
-		return parent::__set($name, $value);
-	}
-
-	public function __get($name) {
-		if ($name == 'admin' || $name == 'siteadmin') {
-			elgg_deprecated_notice('The admin/siteadmin metadata are not longer used.  Use ElggUser->isAdmin().', '1.7.1');
-			return $this->isAdmin();
-		}
-
-		return parent::__get($name);
-	}
-}
+<?php
+/**
+ * ElggUser
+ *
+ * Representation of a "user" in the system.
+ *
+ * @package Elgg
+ * @subpackage Core
+ */
+class ElggUser extends ElggEntity
+	implements Friendable {
+	/**
+	 * Initialise the attributes array.
+	 * This is vital to distinguish between metadata and base parameters.
+	 *
+	 * Place your base parameters here.
+	 */
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['type'] = "user";
+		$this->attributes['name'] = "";
+		$this->attributes['username'] = "";
+		$this->attributes['password'] = "";
+		$this->attributes['salt'] = "";
+		$this->attributes['email'] = "";
+		$this->attributes['language'] = "";
+		$this->attributes['code'] = "";
+		$this->attributes['banned'] = "no";
+		$this->attributes['admin'] = 'no';
+		$this->attributes['tables_split'] = 2;
+	}
+
+	/**
+	 * Construct a new user entity, optionally from a given id value.
+	 *
+	 * @param mixed $guid If an int, load that GUID.
+	 * 	If a db row then will attempt to load the rest of the data.
+	 * @throws Exception if there was a problem creating the user.
+	 */
+	function __construct($guid = null) {
+		$this->initialise_attributes();
+
+		if (!empty($guid)) {
+			// Is $guid is a DB row - either a entity row, or a user table row.
+			if ($guid instanceof stdClass) {
+				// Load the rest
+				if (!$this->load($guid->guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid->guid));
+				}
+			}
+
+			// See if this is a username
+			else if (is_string($guid)) {
+				$guid = get_user_by_username($guid);
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+
+			// Is $guid is an ElggUser? Use a copy constructor
+			else if ($guid instanceof ElggUser) {
+				elgg_deprecated_notice('This type of usage of the ElggUser constructor was deprecated. Please use the clone method.', 1.7);
+
+				foreach ($guid->attributes as $key => $value) {
+					$this->attributes[$key] = $value;
+				}
+			}
+
+			// Is this is an ElggEntity but not an ElggUser = ERROR!
+			else if ($guid instanceof ElggEntity) {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonElggUser'));
+			}
+
+			// We assume if we have got this far, $guid is an int
+			else if (is_numeric($guid)) {
+				if (!$this->load($guid)) {
+					throw new IOException(sprintf(elgg_echo('IOException:FailedToLoadGUID'), get_class(), $guid));
+				}
+			}
+
+			else {
+				throw new InvalidParameterException(elgg_echo('InvalidParameterException:UnrecognisedValue'));
+			}
+		}
+	}
+
+	/**
+	 * Override the load function.
+	 * This function will ensure that all data is loaded (were possible), so
+	 * if only part of the ElggUser is loaded, it'll load the rest.
+	 *
+	 * @param int $guid
+	 * @return true|false
+	 */
+	protected function load($guid) {
+		// Test to see if we have the generic stuff
+		if (!parent::load($guid)) {
+			return false;
+		}
+
+		// Check the type
+		if ($this->attributes['type']!='user') {
+			throw new InvalidClassException(sprintf(elgg_echo('InvalidClassException:NotValidElggStar'), $guid, get_class()));
+		}
+
+		// Load missing data
+		$row = get_user_entity_as_row($guid);
+		if (($row) && (!$this->isFullyLoaded())) {
+			// If $row isn't a cached copy then increment the counter
+			$this->attributes['tables_loaded'] ++;
+		}
+
+		// Now put these into the attributes array as core values
+		$objarray = (array) $row;
+		foreach($objarray as $key => $value) {
+			$this->attributes[$key] = $value;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Saves this user to the database.
+	 * @return true|false
+	 */
+	public function save() {
+		// Save generic stuff
+		if (!parent::save()) {
+			return false;
+		}
+
+		// Now save specific stuff
+		return create_user_entity($this->get('guid'), $this->get('name'), $this->get('username'), $this->get('password'), $this->get('salt'), $this->get('email'), $this->get('language'), $this->get('code'));
+	}
+
+	/**
+	 * User specific override of the entity delete method.
+	 *
+	 * @return bool
+	 */
+	public function delete() {
+		global $USERNAME_TO_GUID_MAP_CACHE, $CODE_TO_GUID_MAP_CACHE;
+
+		// clear cache
+		if (isset($USERNAME_TO_GUID_MAP_CACHE[$this->username])) {
+			unset($USERNAME_TO_GUID_MAP_CACHE[$this->username]);
+		}
+		if (isset($CODE_TO_GUID_MAP_CACHE[$this->code])) {
+			unset($CODE_TO_GUID_MAP_CACHE[$this->code]);
+		}
+
+		// Delete owned data
+		clear_annotations_by_owner($this->guid);
+		clear_metadata_by_owner($this->guid);
+		clear_user_files($this);
+
+		// Delete entity
+		return parent::delete();
+	}
+
+	/**
+	 * Ban this user.
+	 *
+	 * @param string $reason Optional reason
+	 */
+	public function ban($reason = "") {
+		return ban_user($this->guid, $reason);
+	}
+
+	/**
+	 * Unban this user.
+	 */
+	public function unban()	{
+		return unban_user($this->guid);
+	}
+
+	/**
+	 * Is this user banned or not?
+	 *
+	 * @return bool
+	 */
+	public function isBanned() {
+		return $this->banned == 'yes';
+	}
+
+	/**
+	 * Is this user admin?
+	 *
+	 * @return bool
+	 */
+	public function isAdmin() {
+
+		// for backward compatibility we need to pull this directly
+		// from the attributes instead of using the magic methods.
+		// this can be removed in 1.9
+		// return $this->admin == 'yes';
+		return $this->attributes['admin'] == 'yes';
+	}
+
+	/**
+	 * Make the user an admin
+	 *
+	 * @return bool
+	 */
+	public function makeAdmin() {
+		if (make_user_admin($this->guid)) {
+			$this->attributes['admin'] = 'yes';
+			return TRUE;
+		}
+		return FALSE;
+	}
+
+	/**
+	 * Remove the admin flag for user
+	 *
+	 * @return bool
+	 */
+	public function removeAdmin() {
+		if (remove_user_admin($this->guid)) {
+			$this->attributes['admin'] = 'no';
+			return TRUE;
+		}
+		return FALSE;
+	}
+
+	/**
+	 * Get sites that this user is a member of
+	 *
+	 * @param string $subtype Optionally, the subtype of result we want to limit to
+	 * @param int $limit The number of results to return
+	 * @param int $offset Any indexing offset
+	 */
+	function getSites($subtype="", $limit = 10, $offset = 0) {
+		// return get_site_users($this->getGUID(), $subtype, $limit, $offset);
+		return get_user_sites($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Add this user to a particular site
+	 *
+	 * @param int $site_guid The guid of the site to add it to
+	 * @return true|false
+	 */
+	function addToSite($site_guid) {
+		// return add_site_user($this->getGUID(), $site_guid);
+		return add_site_user($site_guid, $this->getGUID());
+	}
+
+	/**
+	 * Remove this user from a particular site
+	 *
+	 * @param int $site_guid The guid of the site to remove it from
+	 * @return true|false
+	 */
+	function removeFromSite($site_guid) {
+		//return remove_site_user($this->getGUID(), $site_guid);
+		return remove_site_user($site_guid, $this->getGUID());
+	}
+
+	/**
+	 * Adds a user to this user's friends list
+	 *
+	 * @param int $friend_guid The GUID of the user to add
+	 * @return true|false Depending on success
+	 */
+	function addFriend($friend_guid) {
+		return user_add_friend($this->getGUID(), $friend_guid);
+	}
+
+	/**
+	 * Removes a user from this user's friends list
+	 *
+	 * @param int $friend_guid The GUID of the user to remove
+	 * @return true|false Depending on success
+	 */
+	function removeFriend($friend_guid) {
+		return user_remove_friend($this->getGUID(), $friend_guid);
+	}
+
+	/**
+	 * Determines whether or not this user is a friend of the currently logged in user
+	 *
+	 * @return true|false
+	 */
+	function isFriend() {
+		return user_is_friend(get_loggedin_userid(), $this->getGUID());
+	}
+
+	/**
+	 * Determines whether this user is friends with another user
+	 *
+	 * @param int $user_guid The GUID of the user to check is on this user's friends list
+	 * @return true|false
+	 */
+	function isFriendsWith($user_guid) {
+		return user_is_friend($this->getGUID(), $user_guid);
+	}
+
+	/**
+	 * Determines whether or not this user is on another user's friends list
+	 *
+	 * @param int $user_guid The GUID of the user to check against
+	 * @return true|false
+	 */
+	function isFriendOf($user_guid) {
+		return user_is_friend($user_guid, $this->getGUID());
+	}
+
+	/**
+	 * Retrieves a list of this user's friends
+	 *
+	 * @param string $subtype Optionally, the subtype of user to filter to (leave blank for all)
+	 * @param int $limit The number of users to retrieve
+	 * @param int $offset Indexing offset, if any
+	 * @return array|false Array of ElggUsers, or false, depending on success
+	 */
+	function getFriends($subtype = "", $limit = 10, $offset = 0) {
+		return get_user_friends($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Retrieves a list of people who have made this user a friend
+	 *
+	 * @param string $subtype Optionally, the subtype of user to filter to (leave blank for all)
+	 * @param int $limit The number of users to retrieve
+	 * @param int $offset Indexing offset, if any
+	 * @return array|false Array of ElggUsers, or false, depending on success
+	 */
+	function getFriendsOf($subtype = "", $limit = 10, $offset = 0) {
+		return get_user_friends_of($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Get an array of ElggObjects owned by this user.
+	 *
+	 * @param string $subtype The subtype of the objects, if any
+	 * @param int $limit Number of results to return
+	 * @param int $offset Any indexing offset
+	 */
+	public function getObjects($subtype="", $limit = 10, $offset = 0) {
+		return get_user_objects($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Get an array of ElggObjects owned by this user's friends.
+	 *
+	 * @param string $subtype The subtype of the objects, if any
+	 * @param int $limit Number of results to return
+	 * @param int $offset Any indexing offset
+	 */
+	public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0) {
+		return get_user_friends_objects($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * Counts the number of ElggObjects owned by this user
+	 *
+	 * @param string $subtype The subtypes of the objects, if any
+	 * @return int The number of ElggObjects
+	 */
+	public function countObjects($subtype = "") {
+		return count_user_objects($this->getGUID(), $subtype);
+	}
+
+	/**
+	 * Get the collections associated with a user.
+	 *
+	 * @param string $subtype Optionally, the subtype of result we want to limit to
+	 * @param int $limit The number of results to return
+	 * @param int $offset Any indexing offset
+	 * @return unknown
+	 */
+	public function getCollections($subtype="", $limit = 10, $offset = 0) {
+		return get_user_collections($this->getGUID(), $subtype, $limit, $offset);
+	}
+
+	/**
+	 * If a user's owner is blank, return its own GUID as the owner
+	 *
+	 * @return int User GUID
+	 */
+	function getOwner() {
+		if ($this->owner_guid == 0) {
+			return $this->getGUID();
+		}
+
+		return $this->owner_guid;
+	}
+
+	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an array of fields which can be exported.
+	 */
+	public function getExportableValues() {
+		return array_merge(parent::getExportableValues(), array(
+			'name',
+			'username',
+			'language',
+		));
+	}
+
+	// backward compatibility with admin flag
+	// remove for 1.9
+	public function __set($name, $value) {
+		if ($name == 'admin' || $name == 'siteadmin') {
+			elgg_deprecated_notice('The admin/siteadmin metadata are not longer used.  Use ElggUser->makeAdmin() and ElggUser->removeAdmin().', '1.7.1');
+
+			if ($value == 'yes' || $value == '1') {
+				$this->makeAdmin();
+			} else {
+				$this->removeAdmin();
+			}
+		}
+		return parent::__set($name, $value);
+	}
+
+	public function __get($name) {
+		if ($name == 'admin' || $name == 'siteadmin') {
+			elgg_deprecated_notice('The admin/siteadmin metadata are not longer used.  Use ElggUser->isAdmin().', '1.7.1');
+			return $this->isAdmin();
+		}
+
+		return parent::__get($name);
+	}
+}
diff --git a/engine/classes/ElggWidget.php b/engine/classes/ElggWidget.php
index dbca3c369..30cbc7dc2 100644
--- a/engine/classes/ElggWidget.php
+++ b/engine/classes/ElggWidget.php
@@ -1,53 +1,53 @@
-<?php
-
-/**
- * Override ElggObject in order to store widget data in ultra-private stores.
- */
-class ElggWidget extends ElggObject {
-	protected function initialise_attributes() {
-		parent::initialise_attributes();
-
-		$this->attributes['subtype'] = "widget";
-	}
-
-	public function __construct($guid = null) {
-		parent::__construct($guid);
-	}
-
-	/**
-	 * Override entity get and sets in order to save data to private data store.
-	 */
-	public function get($name) {
-		// See if its in our base attribute
-		if (isset($this->attributes[$name])) {
-			return $this->attributes[$name];
-		}
-
-		// No, so see if its in the private data store.
-		$meta = get_private_setting($this->guid, $name);
-		if ($meta) {
-			return $meta;
-		}
-
-		// Can't find it, so return null
-		return null;
-	}
-
-	/**
-	 * Override entity get and sets in order to save data to private data store.
-	 */
-	public function set($name, $value) {
-		if (array_key_exists($name, $this->attributes)) {
-			// Check that we're not trying to change the guid!
-			if ((array_key_exists('guid', $this->attributes)) && ($name=='guid')) {
-				return false;
-			}
-
-			$this->attributes[$name] = $value;
-		} else {
-			return set_private_setting($this->guid, $name, $value);
-		}
-
-		return true;
-	}
+<?php
+
+/**
+ * Override ElggObject in order to store widget data in ultra-private stores.
+ */
+class ElggWidget extends ElggObject {
+	protected function initialise_attributes() {
+		parent::initialise_attributes();
+
+		$this->attributes['subtype'] = "widget";
+	}
+
+	public function __construct($guid = null) {
+		parent::__construct($guid);
+	}
+
+	/**
+	 * Override entity get and sets in order to save data to private data store.
+	 */
+	public function get($name) {
+		// See if its in our base attribute
+		if (isset($this->attributes[$name])) {
+			return $this->attributes[$name];
+		}
+
+		// No, so see if its in the private data store.
+		$meta = get_private_setting($this->guid, $name);
+		if ($meta) {
+			return $meta;
+		}
+
+		// Can't find it, so return null
+		return null;
+	}
+
+	/**
+	 * Override entity get and sets in order to save data to private data store.
+	 */
+	public function set($name, $value) {
+		if (array_key_exists($name, $this->attributes)) {
+			// Check that we're not trying to change the guid!
+			if ((array_key_exists('guid', $this->attributes)) && ($name=='guid')) {
+				return false;
+			}
+
+			$this->attributes[$name] = $value;
+		} else {
+			return set_private_setting($this->guid, $name, $value);
+		}
+
+		return true;
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ErrorResult.php b/engine/classes/ErrorResult.php
index 5fc6c88b6..3692cc49b 100644
--- a/engine/classes/ErrorResult.php
+++ b/engine/classes/ErrorResult.php
@@ -1,44 +1,44 @@
-<?php
-/**
- * ErrorResult
- * The error result class.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Core
- */
-class ErrorResult extends GenericResult {
-	// Fail with no specific code
-	public static $RESULT_FAIL = -1 ;
-
-	public static $RESULT_FAIL_APIKEY_DISABLED = -30;
-	public static $RESULT_FAIL_APIKEY_INACTIVE = -31;
-	public static $RESULT_FAIL_APIKEY_INVALID = -32;
-
-	// Invalid, expired or missing auth token
-	public static $RESULT_FAIL_AUTHTOKEN = -20;
-
-	public function ErrorResult($message, $code = "", Exception $exception = NULL) {
-		if ($code == "") {
-			$code = ErrorResult::$RESULT_FAIL;
-		}
-
-		if ($exception!=NULL) {
-			$this->setResult($exception->__toString());
-		}
-
-		$this->setStatusCode($code, $message);
-	}
-
-	/**
-	 * Get a new instance of the ErrorResult.
-	 *
-	 * @param string $message
-	 * @param int $code
-	 * @param Exception $exception Optional exception for generating a stack trace.
-	 */
-	public static function getInstance($message, $code = "", Exception $exception = NULL) {
-		// Return a new error object.
-		return new ErrorResult($message, $code, $exception);
-	}
+<?php
+/**
+ * ErrorResult
+ * The error result class.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Core
+ */
+class ErrorResult extends GenericResult {
+	// Fail with no specific code
+	public static $RESULT_FAIL = -1 ;
+
+	public static $RESULT_FAIL_APIKEY_DISABLED = -30;
+	public static $RESULT_FAIL_APIKEY_INACTIVE = -31;
+	public static $RESULT_FAIL_APIKEY_INVALID = -32;
+
+	// Invalid, expired or missing auth token
+	public static $RESULT_FAIL_AUTHTOKEN = -20;
+
+	public function ErrorResult($message, $code = "", Exception $exception = NULL) {
+		if ($code == "") {
+			$code = ErrorResult::$RESULT_FAIL;
+		}
+
+		if ($exception!=NULL) {
+			$this->setResult($exception->__toString());
+		}
+
+		$this->setStatusCode($code, $message);
+	}
+
+	/**
+	 * Get a new instance of the ErrorResult.
+	 *
+	 * @param string $message
+	 * @param int $code
+	 * @param Exception $exception Optional exception for generating a stack trace.
+	 */
+	public static function getInstance($message, $code = "", Exception $exception = NULL) {
+		// Return a new error object.
+		return new ErrorResult($message, $code, $exception);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/ExportException.php b/engine/classes/ExportException.php
index dc5c686b7..53bf58cec 100644
--- a/engine/classes/ExportException.php
+++ b/engine/classes/ExportException.php
@@ -1,9 +1,9 @@
-<?php
-/**
- * Export exception
- *
- * @package Elgg
- * @subpackage Exceptions
- *
- */
+<?php
+/**
+ * Export exception
+ *
+ * @package Elgg
+ * @subpackage Exceptions
+ *
+ */
 class ExportException extends DataFormatException {}
 \ No newline at end of file
diff --git a/engine/classes/Exportable.php b/engine/classes/Exportable.php
index da5a7cc54..24f9f982a 100644
--- a/engine/classes/Exportable.php
+++ b/engine/classes/Exportable.php
@@ -1,21 +1,21 @@
-<?php
-/**
- * Define an interface for all ODD exportable objects.
- *
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd
- */
-interface Exportable {
-	/**
-	 * This must take the contents of the object and convert it to exportable ODD
-	 * @return object or array of objects.
-	 */
-	public function export();
-
-	/**
-	 * Return a list of all fields that can be exported.
-	 * This should be used as the basis for the values returned by export()
-	 */
-	public function getExportableValues();
+<?php
+/**
+ * Define an interface for all ODD exportable objects.
+ *
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ */
+interface Exportable {
+	/**
+	 * This must take the contents of the object and convert it to exportable ODD
+	 * @return object or array of objects.
+	 */
+	public function export();
+
+	/**
+	 * Return a list of all fields that can be exported.
+	 * This should be used as the basis for the values returned by export()
+	 */
+	public function getExportableValues();
 }
 \ No newline at end of file
diff --git a/engine/classes/GenericResult.php b/engine/classes/GenericResult.php
index 8bccd77f2..623153aa5 100644
--- a/engine/classes/GenericResult.php
+++ b/engine/classes/GenericResult.php
@@ -1,107 +1,107 @@
-<?php
-/**
- * GenericResult Result superclass.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Core
- */
-abstract class GenericResult {
-	/**
-	 * The status of the result.
-	 * @var int
-	 */
-	private $status_code;
-
-	/**
-	 * Message returned along with the status which is almost always an error message.
-	 * This must be human readable, understandable and localised.
-	 * @var string
-	 */
-	private $message;
-
-	/**
-	 * Result store.
-	 * Attach result specific informaton here.
-	 *
-	 * @var mixed. Should probably be an object of some sort.
-	 */
-	private $result;
-
-	/**
-	 * Set a status code and optional message.
-	 *
-	 * @param int $status The status code.
-	 * @param string $message The message.
-	 */
-	protected function setStatusCode($status, $message = "") {
-		$this->status_code = $status;
-		$this->message = $message;
-	}
-
-	/**
-	 * Set the result.
-	 *
-	 * @param mixed $result
-	 */
-	protected function setResult($result) {
-		$this->result = $result;
-	}
-
-	protected function getStatusCode() {
-		return $this->status_code;
-	}
-
-	protected function getStatusMessage() {
-		return $this->message;
-	}
-
-	protected function getResult() {
-		return $this->result;
-	}
-
-	/**
-	 * Serialise to a standard class.
-	 *
-	 * DEVNOTE: The API is only interested in data, we can not easily serialise
-	 * custom classes without the need for 1) the other side being PHP, 2) you need to have the class
-	 * definition installed, 3) its the right version!
-	 *
-	 * Therefore, I'm not bothering.
-	 *
-	 * Override this to include any more specific information, however api results should be attached to the
-	 * class using setResult().
-	 *
-	 * if $CONFIG->debug is set then additional information about the runtime environment and authentication will be
-	 * returned.
-	 *
-	 * @return stdClass Object containing the serialised result.
-	 */
-	public function export() {
-		global $ERRORS, $CONFIG, $_PAM_HANDLERS_MSG;
-
-		$result = new stdClass;
-
-		$result->status = $this->getStatusCode();
-		if ($this->getStatusMessage()!="") {
-			$result->message = $this->getStatusMessage();
-		}
-
-		$resultdata = $this->getResult();
-		if (isset($resultdata)) {
-			$result->result = $resultdata;
-		}
-
-		if (isset($CONFIG->debug)) {
-			if (count($ERRORS)) {
-				$result->runtime_errors = $ERRORS;
-			}
-
-			if (count($_PAM_HANDLERS_MSG)) {
-				$result->pam = $_PAM_HANDLERS_MSG;
-			}
-		}
-
-		return $result;
-	}
+<?php
+/**
+ * GenericResult Result superclass.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Core
+ */
+abstract class GenericResult {
+	/**
+	 * The status of the result.
+	 * @var int
+	 */
+	private $status_code;
+
+	/**
+	 * Message returned along with the status which is almost always an error message.
+	 * This must be human readable, understandable and localised.
+	 * @var string
+	 */
+	private $message;
+
+	/**
+	 * Result store.
+	 * Attach result specific informaton here.
+	 *
+	 * @var mixed. Should probably be an object of some sort.
+	 */
+	private $result;
+
+	/**
+	 * Set a status code and optional message.
+	 *
+	 * @param int $status The status code.
+	 * @param string $message The message.
+	 */
+	protected function setStatusCode($status, $message = "") {
+		$this->status_code = $status;
+		$this->message = $message;
+	}
+
+	/**
+	 * Set the result.
+	 *
+	 * @param mixed $result
+	 */
+	protected function setResult($result) {
+		$this->result = $result;
+	}
+
+	protected function getStatusCode() {
+		return $this->status_code;
+	}
+
+	protected function getStatusMessage() {
+		return $this->message;
+	}
+
+	protected function getResult() {
+		return $this->result;
+	}
+
+	/**
+	 * Serialise to a standard class.
+	 *
+	 * DEVNOTE: The API is only interested in data, we can not easily serialise
+	 * custom classes without the need for 1) the other side being PHP, 2) you need to have the class
+	 * definition installed, 3) its the right version!
+	 *
+	 * Therefore, I'm not bothering.
+	 *
+	 * Override this to include any more specific information, however api results should be attached to the
+	 * class using setResult().
+	 *
+	 * if $CONFIG->debug is set then additional information about the runtime environment and authentication will be
+	 * returned.
+	 *
+	 * @return stdClass Object containing the serialised result.
+	 */
+	public function export() {
+		global $ERRORS, $CONFIG, $_PAM_HANDLERS_MSG;
+
+		$result = new stdClass;
+
+		$result->status = $this->getStatusCode();
+		if ($this->getStatusMessage()!="") {
+			$result->message = $this->getStatusMessage();
+		}
+
+		$resultdata = $this->getResult();
+		if (isset($resultdata)) {
+			$result->result = $resultdata;
+		}
+
+		if (isset($CONFIG->debug)) {
+			if (count($ERRORS)) {
+				$result->runtime_errors = $ERRORS;
+			}
+
+			if (count($_PAM_HANDLERS_MSG)) {
+				$result->pam = $_PAM_HANDLERS_MSG;
+			}
+		}
+
+		return $result;
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/IOException.php b/engine/classes/IOException.php
index 683be32a1..e58eae21f 100644
--- a/engine/classes/IOException.php
+++ b/engine/classes/IOException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * IOException
- * An IO Exception, throw when an IO Exception occurs. Subclass for specific IO Exceptions.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class IOException extends Exception {}
+<?php
+/**
+ * IOException
+ * An IO Exception, throw when an IO Exception occurs. Subclass for specific IO Exceptions.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class IOException extends Exception {}
diff --git a/engine/classes/ImportException.php b/engine/classes/ImportException.php
index fd86fc23c..946652cb4 100644
--- a/engine/classes/ImportException.php
+++ b/engine/classes/ImportException.php
@@ -1,8 +1,8 @@
-<?php
-/**
- * Import exception
- *
- * @package Elgg
- * @subpackage Exceptions
- */
+<?php
+/**
+ * Import exception
+ *
+ * @package Elgg
+ * @subpackage Exceptions
+ */
 class ImportException extends DataFormatException {}
 \ No newline at end of file
diff --git a/engine/classes/Importable.php b/engine/classes/Importable.php
index 775319cb7..ef772b12e 100644
--- a/engine/classes/Importable.php
+++ b/engine/classes/Importable.php
@@ -1,16 +1,16 @@
-<?php
-/**
- * Define an interface for all ODD importable objects.
- * @author Curverider Ltd
- */
-interface Importable {
-	/**
-	 * Accepts an array of data to import, this data is parsed from the XML produced by export.
-	 * The function should return the constructed object data, or NULL.
-	 *
-	 * @param ODD $data
-	 * @return bool
-	 * @throws ImportException if there was a critical error importing data.
-	 */
-	public function import(ODD $data);
-}
+<?php
+/**
+ * Define an interface for all ODD importable objects.
+ * @author Curverider Ltd
+ */
+interface Importable {
+	/**
+	 * Accepts an array of data to import, this data is parsed from the XML produced by export.
+	 * The function should return the constructed object data, or NULL.
+	 *
+	 * @param ODD $data
+	 * @return bool
+	 * @throws ImportException if there was a critical error importing data.
+	 */
+	public function import(ODD $data);
+}
diff --git a/engine/classes/InsertQueryTypeQueryComponent.php b/engine/classes/InsertQueryTypeQueryComponent.php
index 20d1a7adf..4510707a4 100644
--- a/engine/classes/InsertQueryTypeQueryComponent.php
+++ b/engine/classes/InsertQueryTypeQueryComponent.php
@@ -1,14 +1,14 @@
-<?php
-/**
- * @class InsertQueryTypeQueryComponent
- * An insert query.
- * @author Curverider Ltd
- * @see Query
- */
-class InsertQueryTypeQueryComponent extends QueryTypeQueryComponent
-{
-	function __construct()
-	{
-		$this->query_type = "INSERT INTO";
-	}
-}
+<?php
+/**
+ * @class InsertQueryTypeQueryComponent
+ * An insert query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class InsertQueryTypeQueryComponent extends QueryTypeQueryComponent
+{
+	function __construct()
+	{
+		$this->query_type = "INSERT INTO";
+	}
+}
diff --git a/engine/classes/InstallationException.php b/engine/classes/InstallationException.php
index 96bd9beff..4ad2e516b 100644
--- a/engine/classes/InstallationException.php
+++ b/engine/classes/InstallationException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * InstallationException
- * Thrown when there is a major problem with the installation.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class InstallationException extends ConfigurationException {}
+<?php
+/**
+ * InstallationException
+ * Thrown when there is a major problem with the installation.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class InstallationException extends ConfigurationException {}
diff --git a/engine/classes/InvalidClassException.php b/engine/classes/InvalidClassException.php
index 84d3b3625..31c3dfbc2 100644
--- a/engine/classes/InvalidClassException.php
+++ b/engine/classes/InvalidClassException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * InvalidClassException
- * An invalid class Exception, throw when a class is invalid.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class InvalidClassException extends ClassException {}
+<?php
+/**
+ * InvalidClassException
+ * An invalid class Exception, throw when a class is invalid.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class InvalidClassException extends ClassException {}
diff --git a/engine/classes/InvalidParameterException.php b/engine/classes/InvalidParameterException.php
index a94904da0..1c0a83939 100644
--- a/engine/classes/InvalidParameterException.php
+++ b/engine/classes/InvalidParameterException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * InvalidParameterException
- * A parameter is invalid.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class InvalidParameterException extends CallException {}
+<?php
+/**
+ * InvalidParameterException
+ * A parameter is invalid.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class InvalidParameterException extends CallException {}
diff --git a/engine/classes/JoinQueryComponent.php b/engine/classes/JoinQueryComponent.php
index 8300cf710..ebce7b8f0 100644
--- a/engine/classes/JoinQueryComponent.php
+++ b/engine/classes/JoinQueryComponent.php
@@ -1,33 +1,33 @@
-<?php
-/**
- * @class JoinQueryComponent Join query.
- * Represents a join query.
- * @author Curverider Ltd
- * @see Query
- */
-class JoinQueryComponent extends QueryComponent
-{
-	/**
-	 * Construct a join query.
-	 * @param string $table Table one to join...
-	 * @param string $field Field 1 with...
-	 * @param string $table2 Table 2 ...
-	 * @param string $field2 Field...
-	 * @param string $operator Using this operator
-	 */
-	function __construct($table1, $field1, $table2, $field2, $operator = "=")
-	{
-		global $CONFIG;
-
-		$this->table1 = $CONFIG->dbprefix . sanitise_string($table1);
-		$this->field1 = sanitise_string($field1);
-		$this->table2 = $CONFIG->dbprefix . sanitise_string($table2);
-		$this->field2 = sanitise_string($field2);
-		$this->operator = sanitise_string($operator);
-	}
-
-	function __toString()
-	{
-		return "join {$this->table2} on {$this->$table}.{$this->$field} {$this->$operator} {$this->$table2}.{$this->$field2}";
-	}
-}
+<?php
+/**
+ * @class JoinQueryComponent Join query.
+ * Represents a join query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class JoinQueryComponent extends QueryComponent
+{
+	/**
+	 * Construct a join query.
+	 * @param string $table Table one to join...
+	 * @param string $field Field 1 with...
+	 * @param string $table2 Table 2 ...
+	 * @param string $field2 Field...
+	 * @param string $operator Using this operator
+	 */
+	function __construct($table1, $field1, $table2, $field2, $operator = "=")
+	{
+		global $CONFIG;
+
+		$this->table1 = $CONFIG->dbprefix . sanitise_string($table1);
+		$this->field1 = sanitise_string($field1);
+		$this->table2 = $CONFIG->dbprefix . sanitise_string($table2);
+		$this->field2 = sanitise_string($field2);
+		$this->operator = sanitise_string($operator);
+	}
+
+	function __toString()
+	{
+		return "join {$this->table2} on {$this->$table}.{$this->$field} {$this->$operator} {$this->$table2}.{$this->$field2}";
+	}
+}
diff --git a/engine/classes/LimitOffsetQueryComponent.php b/engine/classes/LimitOffsetQueryComponent.php
index 2cc77dd47..353263ffb 100644
--- a/engine/classes/LimitOffsetQueryComponent.php
+++ b/engine/classes/LimitOffsetQueryComponent.php
@@ -1,26 +1,26 @@
-<?php
-/**
- * @class LimitOffsetQueryComponent
- * Limit and offset clauses of a query.
- * @author Curverider Ltd
- * @see Query
- */
-class LimitOffsetQueryComponent extends QueryComponent
-{
-	/**
-	 * Specify a limit and an offset.
-	 *
-	 * @param int $limit The limit.
-	 * @param int $offset The offset.
-	 */
-	function __construct($limit = 25, $offset = 0)
-	{
-		$this->limit = (int)$limit;
-		$this->offset = (int)$offset;
-	}
-
-	function __toString()
-	{
-		return "limit {$this->offset}, {$this->limit}";
-	}
-}
+<?php
+/**
+ * @class LimitOffsetQueryComponent
+ * Limit and offset clauses of a query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class LimitOffsetQueryComponent extends QueryComponent
+{
+	/**
+	 * Specify a limit and an offset.
+	 *
+	 * @param int $limit The limit.
+	 * @param int $offset The offset.
+	 */
+	function __construct($limit = 25, $offset = 0)
+	{
+		$this->limit = (int)$limit;
+		$this->offset = (int)$offset;
+	}
+
+	function __toString()
+	{
+		return "limit {$this->offset}, {$this->limit}";
+	}
+}
diff --git a/engine/classes/Locatable.php b/engine/classes/Locatable.php
index 5f52d8eab..de191ff43 100644
--- a/engine/classes/Locatable.php
+++ b/engine/classes/Locatable.php
@@ -1,36 +1,36 @@
-<?php
-
-/**
- * Define an interface for geo-tagging entities.
- *
- */
-interface Locatable {
-	/** Set a location text */
-	public function setLocation($location);
-
-	/**
-	 * Set latitude and longitude tags for a given entity.
-	 *
-	 * @param float $lat
-	 * @param float $long
-	 */
-	public function setLatLong($lat, $long);
-
-	/**
-	 * Get the contents of the ->geo:lat field.
-	 *
-	 */
-	public function getLatitude();
-
-	/**
-	 * Get the contents of the ->geo:lat field.
-	 *
-	 */
-	public function getLongitude();
-
-	/**
-	 * Get the ->location metadata.
-	 *
-	 */
-	public function getLocation();
+<?php
+
+/**
+ * Define an interface for geo-tagging entities.
+ *
+ */
+interface Locatable {
+	/** Set a location text */
+	public function setLocation($location);
+
+	/**
+	 * Set latitude and longitude tags for a given entity.
+	 *
+	 * @param float $lat
+	 * @param float $long
+	 */
+	public function setLatLong($lat, $long);
+
+	/**
+	 * Get the contents of the ->geo:lat field.
+	 *
+	 */
+	public function getLatitude();
+
+	/**
+	 * Get the contents of the ->geo:lat field.
+	 *
+	 */
+	public function getLongitude();
+
+	/**
+	 * Get the ->location metadata.
+	 *
+	 */
+	public function getLocation();
 }
 \ No newline at end of file
diff --git a/engine/classes/Loggable.php b/engine/classes/Loggable.php
index e12641410..210eeb702 100644
--- a/engine/classes/Loggable.php
+++ b/engine/classes/Loggable.php
@@ -1,49 +1,49 @@
-<?php
-/**
- * Interface that provides an interface which must be implemented by all objects wishing to be
- * recorded in the system log (and by extension the river).
- *
- * This interface defines a set of methods that permit the system log functions to hook in and retrieve
- * the necessary information and to identify what events can actually be logged.
- *
- * To have events involving your object to be logged simply implement this interface.
- *
- * @author Curverider Ltd
- */
-interface Loggable {
-	/**
-	 * Return an identification for the object for storage in the system log.
-	 * This id must be an integer.
-	 *
-	 * @return int
-	 */
-	public function getSystemLogID();
-
-	/**
-	 * Return the class name of the object.
-	 * Added as a function because get_class causes errors for some reason.
-	 */
-	public function getClassName();
-
-	/**
-	 * Return the type of the object - eg. object, group, user, relationship, metadata, annotation etc
-	 */
-	public function getType();
-
-	/**
-	 * Return a subtype. For metadata & annotations this is the 'name' and for relationship this is the relationship type.
-	 */
-	public function getSubtype();
-
-	/**
-	 * For a given ID, return the object associated with it.
-	 * This is used by the river functionality primarily.
-	 * This is useful for checking access permissions etc on objects.
-	 */
-	public function getObjectFromID($id);
-
-	/**
-	 * Return the GUID of the owner of this object.
-	 */
-	public function getObjectOwnerGUID();
+<?php
+/**
+ * Interface that provides an interface which must be implemented by all objects wishing to be
+ * recorded in the system log (and by extension the river).
+ *
+ * This interface defines a set of methods that permit the system log functions to hook in and retrieve
+ * the necessary information and to identify what events can actually be logged.
+ *
+ * To have events involving your object to be logged simply implement this interface.
+ *
+ * @author Curverider Ltd
+ */
+interface Loggable {
+	/**
+	 * Return an identification for the object for storage in the system log.
+	 * This id must be an integer.
+	 *
+	 * @return int
+	 */
+	public function getSystemLogID();
+
+	/**
+	 * Return the class name of the object.
+	 * Added as a function because get_class causes errors for some reason.
+	 */
+	public function getClassName();
+
+	/**
+	 * Return the type of the object - eg. object, group, user, relationship, metadata, annotation etc
+	 */
+	public function getType();
+
+	/**
+	 * Return a subtype. For metadata & annotations this is the 'name' and for relationship this is the relationship type.
+	 */
+	public function getSubtype();
+
+	/**
+	 * For a given ID, return the object associated with it.
+	 * This is used by the river functionality primarily.
+	 * This is useful for checking access permissions etc on objects.
+	 */
+	public function getObjectFromID($id);
+
+	/**
+	 * Return the GUID of the owner of this object.
+	 */
+	public function getObjectOwnerGUID();
 }
 \ No newline at end of file
diff --git a/engine/classes/NotImplementedException.php b/engine/classes/NotImplementedException.php
index f95c88c47..39e5a2803 100644
--- a/engine/classes/NotImplementedException.php
+++ b/engine/classes/NotImplementedException.php
@@ -1,11 +1,11 @@
-<?php
-/**
- * NotImplementedException
- * Thrown when a method or function has not been implemented, primarily used in development... you should
- * not see these!
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class NotImplementedException extends CallException {}
+<?php
+/**
+ * NotImplementedException
+ * Thrown when a method or function has not been implemented, primarily used in development... you should
+ * not see these!
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class NotImplementedException extends CallException {}
diff --git a/engine/classes/Notable.php b/engine/classes/Notable.php
index 3c133d494..ae88b521f 100644
--- a/engine/classes/Notable.php
+++ b/engine/classes/Notable.php
@@ -1,30 +1,30 @@
-<?php
-/**
- * Calendar interface for events.
- *
- */
-interface Notable {
-	/**
-	 * Calendar functionality.
-	 * This function sets the time of an object on a calendar listing.
-	 *
-	 * @param int $hour If ommitted, now is assumed.
-	 * @param int $minute If ommitted, now is assumed.
-	 * @param int $second If ommitted, now is assumed.
-	 * @param int $day If ommitted, now is assumed.
-	 * @param int $month If ommitted, now is assumed.
-	 * @param int $year If ommitted, now is assumed.
-	 * @param int $duration Duration of event, remainder of the day is assumed.
-	 */
-	public function setCalendarTimeAndDuration($hour = NULL, $minute = NULL, $second = NULL, $day = NULL, $month = NULL, $year = NULL, $duration = NULL);
-
-	/**
-	 * Return the start timestamp.
-	 */
-	public function getCalendarStartTime();
-
-	/**
-	 * Return the end timestamp.
-	 */
-	public function getCalendarEndTime();
+<?php
+/**
+ * Calendar interface for events.
+ *
+ */
+interface Notable {
+	/**
+	 * Calendar functionality.
+	 * This function sets the time of an object on a calendar listing.
+	 *
+	 * @param int $hour If ommitted, now is assumed.
+	 * @param int $minute If ommitted, now is assumed.
+	 * @param int $second If ommitted, now is assumed.
+	 * @param int $day If ommitted, now is assumed.
+	 * @param int $month If ommitted, now is assumed.
+	 * @param int $year If ommitted, now is assumed.
+	 * @param int $duration Duration of event, remainder of the day is assumed.
+	 */
+	public function setCalendarTimeAndDuration($hour = NULL, $minute = NULL, $second = NULL, $day = NULL, $month = NULL, $year = NULL, $duration = NULL);
+
+	/**
+	 * Return the start timestamp.
+	 */
+	public function getCalendarStartTime();
+
+	/**
+	 * Return the end timestamp.
+	 */
+	public function getCalendarEndTime();
 }
 \ No newline at end of file
diff --git a/engine/classes/NotificationException.php b/engine/classes/NotificationException.php
index 78ea4c57e..e963a6abe 100644
--- a/engine/classes/NotificationException.php
+++ b/engine/classes/NotificationException.php
@@ -1,6 +1,6 @@
-<?php
-/**
- * Notification exception.
- * @author Curverider Ltd
- */
-class NotificationException extends Exception {}
+<?php
+/**
+ * Notification exception.
+ * @author Curverider Ltd
+ */
+class NotificationException extends Exception {}
diff --git a/engine/classes/ODD.php b/engine/classes/ODD.php
index a4118ee15..0bbf91efa 100644
--- a/engine/classes/ODD.php
+++ b/engine/classes/ODD.php
@@ -1,94 +1,94 @@
-<?php
-/**
- * Open Data Definition (ODD) superclass.
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd
- */
-abstract class ODD {
-	/**
-	 * Attributes.
-	 */
-	private $attributes = array();
-
-	/**
-	 * Optional body.
-	 */
-	private $body;
-
-	/**
-	 * Construct an ODD document with initial values.
-	 */
-	public function __construct() {
-		$this->body = "";
-	}
-
-	public function getAttributes() {
-		return $this->attributes;
-	}
-
-	public function setAttribute($key, $value) {
-		$this->attributes[$key] = $value;
-	}
-
-	public function getAttribute($key) {
-		if (isset($this->attributes[$key])) {
-			return $this->attributes[$key];
-		}
-
-		return NULL;
-	}
-
-	public function setBody($value) {
-		$this->body = $value;
-	}
-
-	public function getBody() {
-		return $this->body;
-	}
-
-	/**
-	 * Set the published time.
-	 *
-	 * @param int $time Unix timestamp
-	 */
-	public function setPublished($time) {
-		$this->attributes['published'] = date("r", $time);
-	}
-
-	/**
-	 * Return the published time as a unix timestamp.
-	 *
-	 * @return int or false on failure.
-	 */
-	public function getPublishedAsTime() {
-		return strtotime($this->attributes['published']);
-	}
-
-	/**
-	 * For serialisation, implement to return a string name of the tag eg "header" or "metadata".
-	 * @return string
-	 */
-	abstract protected function getTagName();
-
-	/**
-	 * Magic function to generate valid ODD XML for this item.
-	 */
-	public function __toString() {
-		// Construct attributes
-		$attr = "";
-		foreach ($this->attributes as $k => $v) {
-			$attr .= ($v!="") ? "$k=\"$v\" " : "";
-		}
-
-		$body = $this->getBody();
-		$tag = $this->getTagName();
-
-		$end = "/>";
-		if ($body!="") {
-			$end = "><![CDATA[$body]]></{$tag}>";
-		}
-
-		return "<{$tag} $attr" . $end . "\n";
-	}
-}
+<?php
+/**
+ * Open Data Definition (ODD) superclass.
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ */
+abstract class ODD {
+	/**
+	 * Attributes.
+	 */
+	private $attributes = array();
+
+	/**
+	 * Optional body.
+	 */
+	private $body;
+
+	/**
+	 * Construct an ODD document with initial values.
+	 */
+	public function __construct() {
+		$this->body = "";
+	}
+
+	public function getAttributes() {
+		return $this->attributes;
+	}
+
+	public function setAttribute($key, $value) {
+		$this->attributes[$key] = $value;
+	}
+
+	public function getAttribute($key) {
+		if (isset($this->attributes[$key])) {
+			return $this->attributes[$key];
+		}
+
+		return NULL;
+	}
+
+	public function setBody($value) {
+		$this->body = $value;
+	}
+
+	public function getBody() {
+		return $this->body;
+	}
+
+	/**
+	 * Set the published time.
+	 *
+	 * @param int $time Unix timestamp
+	 */
+	public function setPublished($time) {
+		$this->attributes['published'] = date("r", $time);
+	}
+
+	/**
+	 * Return the published time as a unix timestamp.
+	 *
+	 * @return int or false on failure.
+	 */
+	public function getPublishedAsTime() {
+		return strtotime($this->attributes['published']);
+	}
+
+	/**
+	 * For serialisation, implement to return a string name of the tag eg "header" or "metadata".
+	 * @return string
+	 */
+	abstract protected function getTagName();
+
+	/**
+	 * Magic function to generate valid ODD XML for this item.
+	 */
+	public function __toString() {
+		// Construct attributes
+		$attr = "";
+		foreach ($this->attributes as $k => $v) {
+			$attr .= ($v!="") ? "$k=\"$v\" " : "";
+		}
+
+		$body = $this->getBody();
+		$tag = $this->getTagName();
+
+		$end = "/>";
+		if ($body!="") {
+			$end = "><![CDATA[$body]]></{$tag}>";
+		}
+
+		return "<{$tag} $attr" . $end . "\n";
+	}
+}
diff --git a/engine/classes/ODDDocument.php b/engine/classes/ODDDocument.php
index 0c8731a75..834b5b8fe 100644
--- a/engine/classes/ODDDocument.php
+++ b/engine/classes/ODDDocument.php
@@ -1,129 +1,129 @@
-<?php
-/**
- * @class ODDDocument ODD Document container.
- * This class is used during import and export to construct.
- * @author Curverider Ltd
- */
-class ODDDocument implements Iterator {
-	/**
-	 * ODD Version
-	 *
-	 * @var string
-	 */
-	private $ODDSupportedVersion = "1.0";
-
-	/**
-	 * Elements of the document.
-	 */
-	private $elements;
-
-	/**
-	 * Optional wrapper factory.
-	 */
-	private $wrapperfactory;
-
-	public function __construct(array $elements = NULL) {
-		if ($elements) {
-			if (is_array($elements)) {
-				$this->elements = $elements;
-			} else {
-				$this->addElement($elements);
-			}
-		} else {
-			$this->elements = array();
-		}
-	}
-
-	/**
-	 * Return the version of ODD being used.
-	 *
-	 * @return string
-	 */
-	public function getVersion() {
-		return $this->ODDSupportedVersion;
-	}
-
-	public function getNumElements() {
-		return count($this->elements);
-	}
-
-	public function addElement(ODD $element) {
-		if (!is_array($this->elements)) {
-			$this->elements = array();
-			$this->elements[] = $element;
-		}
-	}
-
-	public function addElements(array $elements) {
-		foreach ($elements as $element) {
-			$this->addElement($element);
-		}
-	}
-
-	public function getElements() {
-		return $this->elements;
-	}
-
-	/**
-	 * Set an optional wrapper factory to optionally embed the ODD document in another format.
-	 */
-	public function setWrapperFactory(ODDWrapperFactory $factory) {
-		$this->wrapperfactory = $factory;
-	}
-
-	/**
-	 * Magic function to generate valid ODD XML for this item.
-	 */
-	public function __toString() {
-		$xml = "";
-
-		if ($this->wrapperfactory) {
-			// A wrapper has been provided
-			$wrapper = $this->wrapperfactory->getElementWrapper($this); // Get the wrapper for this element
-
-			$xml = $wrapper->wrap($this); // Wrap this element (and subelements)
-		} else {
-			// Output begin tag
-			$generated = date("r");
-			$xml .= "<odd version=\"{$this->ODDSupportedVersion}\" generated=\"$generated\">\n";
-
-			// Get XML for elements
-			foreach ($this->elements as $element) {
-				$xml .= "$element";
-			}
-
-			// Output end tag
-			$xml .= "</odd>\n";
-		}
-
-		return $xml;
-	}
-
-	// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
-	/*
-	 * This lets an entity's attributes be displayed using foreach as a normal array.
-	 * Example: http://www.sitepoint.com/print/php5-standard-library
-	 */
-
-	private $valid = FALSE;
-
-	function rewind() {
-		$this->valid = (FALSE !== reset($this->elements));
-	}
-
-	function current() {
-		return current($this->elements);
-	}
-
-	function key() {
-		return key($this->elements);
-	}
-
-	function next() {
-		$this->valid = (FALSE !== next($this->elements));
-	}
-
-	function valid() {
-		return $this->valid;
-	}
-}
+<?php
+/**
+ * @class ODDDocument ODD Document container.
+ * This class is used during import and export to construct.
+ * @author Curverider Ltd
+ */
+class ODDDocument implements Iterator {
+	/**
+	 * ODD Version
+	 *
+	 * @var string
+	 */
+	private $ODDSupportedVersion = "1.0";
+
+	/**
+	 * Elements of the document.
+	 */
+	private $elements;
+
+	/**
+	 * Optional wrapper factory.
+	 */
+	private $wrapperfactory;
+
+	public function __construct(array $elements = NULL) {
+		if ($elements) {
+			if (is_array($elements)) {
+				$this->elements = $elements;
+			} else {
+				$this->addElement($elements);
+			}
+		} else {
+			$this->elements = array();
+		}
+	}
+
+	/**
+	 * Return the version of ODD being used.
+	 *
+	 * @return string
+	 */
+	public function getVersion() {
+		return $this->ODDSupportedVersion;
+	}
+
+	public function getNumElements() {
+		return count($this->elements);
+	}
+
+	public function addElement(ODD $element) {
+		if (!is_array($this->elements)) {
+			$this->elements = array();
+			$this->elements[] = $element;
+		}
+	}
+
+	public function addElements(array $elements) {
+		foreach ($elements as $element) {
+			$this->addElement($element);
+		}
+	}
+
+	public function getElements() {
+		return $this->elements;
+	}
+
+	/**
+	 * Set an optional wrapper factory to optionally embed the ODD document in another format.
+	 */
+	public function setWrapperFactory(ODDWrapperFactory $factory) {
+		$this->wrapperfactory = $factory;
+	}
+
+	/**
+	 * Magic function to generate valid ODD XML for this item.
+	 */
+	public function __toString() {
+		$xml = "";
+
+		if ($this->wrapperfactory) {
+			// A wrapper has been provided
+			$wrapper = $this->wrapperfactory->getElementWrapper($this); // Get the wrapper for this element
+
+			$xml = $wrapper->wrap($this); // Wrap this element (and subelements)
+		} else {
+			// Output begin tag
+			$generated = date("r");
+			$xml .= "<odd version=\"{$this->ODDSupportedVersion}\" generated=\"$generated\">\n";
+
+			// Get XML for elements
+			foreach ($this->elements as $element) {
+				$xml .= "$element";
+			}
+
+			// Output end tag
+			$xml .= "</odd>\n";
+		}
+
+		return $xml;
+	}
+
+	// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
+	/*
+	 * This lets an entity's attributes be displayed using foreach as a normal array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+
+	private $valid = FALSE;
+
+	function rewind() {
+		$this->valid = (FALSE !== reset($this->elements));
+	}
+
+	function current() {
+		return current($this->elements);
+	}
+
+	function key() {
+		return key($this->elements);
+	}
+
+	function next() {
+		$this->valid = (FALSE !== next($this->elements));
+	}
+
+	function valid() {
+		return $this->valid;
+	}
+}
diff --git a/engine/classes/ODDEntity.php b/engine/classes/ODDEntity.php
index 30da5f37f..635e2e179 100644
--- a/engine/classes/ODDEntity.php
+++ b/engine/classes/ODDEntity.php
@@ -1,60 +1,60 @@
-<?php
-
-/**
- * ODD Entity class.
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd
- */
-class ODDEntity extends ODD {
-	function __construct($uuid, $class, $subclass = "") {
-		parent::__construct();
-
-		$this->setAttribute('uuid', $uuid);
-		$this->setAttribute('class', $class);
-		$this->setAttribute('subclass', $subclass);
-	}
-
-	protected function getTagName() { return "entity"; }
-}
-
-/**
- * ODD Metadata class.
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd
- */
-class ODDMetaData extends ODD {
-	function __construct($uuid, $entity_uuid, $name, $value, $type = "", $owner_uuid = "") {
-		parent::__construct();
-
-		$this->setAttribute('uuid', $uuid);
-		$this->setAttribute('entity_uuid', $entity_uuid);
-		$this->setAttribute('name', $name);
-		$this->setAttribute('type', $type);
-		$this->setAttribute('owner_uuid', $owner_uuid);
-		$this->setBody($value);
-	}
-
-	protected function getTagName() {
-		return "metadata";
-	}
-}
-
-/**
- * ODD Relationship class.
- * @package Elgg
- * @subpackage Core
- * @author Curverider Ltd
- */
-class ODDRelationship extends ODD {
-	function __construct($uuid1, $type, $uuid2) {
-		parent::__construct();
-
-		$this->setAttribute('uuid1', $uuid1);
-		$this->setAttribute('type', $type);
-		$this->setAttribute('uuid2', $uuid2);
-	}
-
-	protected function getTagName() { return "relationship"; }
+<?php
+
+/**
+ * ODD Entity class.
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ */
+class ODDEntity extends ODD {
+	function __construct($uuid, $class, $subclass = "") {
+		parent::__construct();
+
+		$this->setAttribute('uuid', $uuid);
+		$this->setAttribute('class', $class);
+		$this->setAttribute('subclass', $subclass);
+	}
+
+	protected function getTagName() { return "entity"; }
+}
+
+/**
+ * ODD Metadata class.
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ */
+class ODDMetaData extends ODD {
+	function __construct($uuid, $entity_uuid, $name, $value, $type = "", $owner_uuid = "") {
+		parent::__construct();
+
+		$this->setAttribute('uuid', $uuid);
+		$this->setAttribute('entity_uuid', $entity_uuid);
+		$this->setAttribute('name', $name);
+		$this->setAttribute('type', $type);
+		$this->setAttribute('owner_uuid', $owner_uuid);
+		$this->setBody($value);
+	}
+
+	protected function getTagName() {
+		return "metadata";
+	}
+}
+
+/**
+ * ODD Relationship class.
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ */
+class ODDRelationship extends ODD {
+	function __construct($uuid1, $type, $uuid2) {
+		parent::__construct();
+
+		$this->setAttribute('uuid1', $uuid1);
+		$this->setAttribute('type', $type);
+		$this->setAttribute('uuid2', $uuid2);
+	}
+
+	protected function getTagName() { return "relationship"; }
 }
 \ No newline at end of file
diff --git a/engine/classes/OrderQueryComponent.php b/engine/classes/OrderQueryComponent.php
index 04bb309c9..acaad036f 100644
--- a/engine/classes/OrderQueryComponent.php
+++ b/engine/classes/OrderQueryComponent.php
@@ -1,23 +1,23 @@
-<?php
-/**
- * @class OrderQueryComponent
- * Order the query results.
- * @author Curverider Ltd
- * @see Query
- */
-class OrderQueryComponent extends QueryComponent
-{
-	function __construct($table, $field, $order = "asc")
-	{
-		global $CONFIG;
-
-		$this->table = $CONFIG->dbprefix . sanitise_string($table);
-		$this->field = sanitise_string($field);
-		$this->order = sanitise_string($order);
-	}
-
-	function __toString()
-	{
-		return "order by {$this->table}.{$this->field} {$this->order}";
-	}
-}
+<?php
+/**
+ * @class OrderQueryComponent
+ * Order the query results.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class OrderQueryComponent extends QueryComponent
+{
+	function __construct($table, $field, $order = "asc")
+	{
+		global $CONFIG;
+
+		$this->table = $CONFIG->dbprefix . sanitise_string($table);
+		$this->field = sanitise_string($field);
+		$this->order = sanitise_string($order);
+	}
+
+	function __toString()
+	{
+		return "order by {$this->table}.{$this->field} {$this->order}";
+	}
+}
diff --git a/engine/classes/PluginException.php b/engine/classes/PluginException.php
index 4da15791d..d81a921a9 100644
--- a/engine/classes/PluginException.php
+++ b/engine/classes/PluginException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * PluginException
- *
- * A plugin Exception, thrown when an Exception occurs relating to the plugin mechanism. Subclass for specific plugin Exceptions.
- *
- * @package Elgg
- * @subpackage Exceptions
- */
+<?php
+/**
+ * PluginException
+ *
+ * A plugin Exception, thrown when an Exception occurs relating to the plugin mechanism. Subclass for specific plugin Exceptions.
+ *
+ * @package Elgg
+ * @subpackage Exceptions
+ */
 class PluginException extends Exception {}
 \ No newline at end of file
diff --git a/engine/classes/Query.php b/engine/classes/Query.php
index ebc7e1474..acc5664a2 100644
--- a/engine/classes/Query.php
+++ b/engine/classes/Query.php
@@ -1,286 +1,286 @@
-<?php
-/**
- * @class Query Provides a framework to construct complex queries in a safer environment.
- *
- * The usage of this class depends on the type of query you are executing, but the basic idea is to
- * construct a query out of pluggable classes.
- *
- * Once constructed SQL can be generated using the toString method, this should happen automatically
- * if you pass the Query object to get_data or similar.
- *
- * To construct a query, create a new Query() object and begin populating it with the various classes
- * that define the various aspects of the query.
- *
- * Notes:
- * 	- You do not have to specify things in any particular order, provided you specify all required
- * 	  components.
- *  - With database tables you do not have to specify your db prefix, this will be added automatically.
- *  - When constructing your query keep an eye on the error log - any problems will get spit out here.
- * 	  Note also that __toString won't let you throw Exceptions (!!!) so these are caught and echoed to
- *    the log instead.
- *
- * Here is an example of a select query which requests some data out of the entities table with an
- * order and limit that uses a subset where and some normal where queries:
- *
- * <blockquote>
- * 		// Construct the query
- * 		$query = new Query();
- *
- * 		// Say which table we're interested in
- * 		$query->addTable(new TableQueryComponent("entities"));
- *
- * 		// What fields are we interested in
- * 		$query->addSelectField(new SelectFieldQueryComponent("entities","*"));
- *
- * 		// Add access control (Default access control uses default fields on entities table.
- * 		// Note that it will error without something specified here!
- * 		$query->setAccessControl(new AccessControlQueryComponent());
- *
- * 		// Set a limit and offset, may be omitted.
- * 		$query->setLimitAndOffset(new LimitOffsetQueryComponent(10,0));
- *
- * 		// Specify the order, may be omitted
- * 		$query->setOrder(new OrderQueryComponent("entities", "subtype", "desc"));
- *
- * 		// Construct a where query
- * 		//
- * 		// This demonstrates a WhereSet which lets you have sub wheres, a
- * 		// WhereStatic which lets you compare a table field against a value and a
- * 		// Where which lets you compare a table/field with another table/field.
- * 		$query->addWhere(
- * 			new WhereSetQueryComponent(
- * 				array(
- * 					new WhereStaticQueryComponent("entities", "subtype","=", 1),
- * 					new WhereQueryComponent("entities","subtype","=", "entities", "subtype")
- * 				)
- * 			)
- * 		);
- *
- * 		get_data($query);
- * </blockquote>
- *
- * @author Curverider Ltd
- */
-class Query
-{
-
-	/// The limit of the query
-	private $limit_and_offset;
-
-	/// Fields to return on a query
-	private $fields;
-
-	/// Tables to use in a from query
-	private $tables;
-
-	/// Join tables
-	private $joins;
-
-	/// Set values
-	private $sets;
-
-	/// Where query
-	private $where;
-
-	/// Order by
-	private $order;
-
-	/// The query type
-	private $query_type;
-
-	/// ACL
-	private $access_control;
-
-	/**
-	 * Construct query & initialise variables
-	 */
-	function __construct()
-	{
-		$this->fields = array();
-		$this->tables = array();
-		$this->joins = array();
-		$this->where = array();
-		$this->sets = array();
-
-		$this->setQueryType(new SelectQueryTypeQueryComponent());
-	}
-
-	/**
-	 * Add limits and offsets to the query.
-	 *
-	 * @param LimitOffsetQueryComponent $component The limit and offset.
-	 */
-	public function setLimitAndOffset(LimitOffsetQueryComponent $component) { $this->limit_and_offset = $component; }
-
-	/**
-	 * Reset and set the field to the select statement.
-	 *
-	 * @param SelectFieldQueryComponent $component Table and field component.
-	 */
-	public function setSelectField(SelectFieldQueryComponent $component)
-	{
-		$this->fields = array();
-		return $this->addSelectField($component);
-	}
-
-	/**
-	 * Add a select field.
-	 *
-	 * @param SelectFieldQueryComponent $component Add a component.
-	 */
-	public function addSelectField(SelectFieldQueryComponent $component) { $this->fields[] = $component; }
-
-	/**
-	 * Add a join to the component.
-	 *
-	 * @param JoinQueryComponent $component The join.
-	 */
-	public function addJoin(JoinQueryComponent $component) { $this->joins[] = $component; }
-
-	/**
-	 * Set a field value in an update or insert statement.
-	 *
-	 * @param SetQueryComponent $component Fields to set.
-	 */
-	public function addSet(SetQueryComponent $component) { $this->sets[] = $component; }
-
-	/**
-	 * Set the query type, i.e. "select", "update", "insert" & "delete".
-	 *
-	 * @param QueryTypeQueryComponent $component The query type.
-	 */
-	public function setQueryType(QueryTypeQueryComponent $component) { $this->query_type = $component; }
-
-	/**
-	 * Attach an order component.
-	 *
-	 * @param OrderQueryComponent $component The order component.
-	 */
-	public function setOrder(OrderQueryComponent $component) { $this->order = $component; }
-
-	/**
-	 * Add a table to the query.
-	 *
-	 * @param TableQueryComponent $component Table to add.
-	 */
-	public function addTable(TableQueryComponent $component) { $this->tables[] = $component; }
-
-	/**
-	 * Add a where clause to the query.
-	 *
-	 * @param WhereQueryComponent $component The where component
-	 */
-	public function addWhere(WhereQueryComponent $component) { $this->where[] = $component; }
-
-	/**
-	 * Set access control.
-	 *
-	 * @param AccessControlQueryComponent $component Access control.
-	 */
-	public function setAccessControl(AccessControlQueryComponent $component) { $this->access_control = $component; }
-
-	public function __toString()
-	{
-		global $CONFIG;
-
-		$sql = "";
-
-		try
-		{
-			// Query prefix & fields
-			if (!empty($this->query_type))
-			{
-				$sql .= "{$this->query_type} ";
-
-				if (!empty($this->fields))
-				{
-					$fields = "";
-
-					foreach ($this->fields as $field)
-						$fields .= "$field";
-
-					$sql .= " $fields from ";
-				}
-				else
-					throw new DatabaseException(elgg_echo('DatabaseException:SelectFieldsMissing'));
-			}
-			else
-				throw new DatabaseException(elgg_echo('DatabaseException:UnspecifiedQueryType'));
-
-			// Tables
-			if (!empty($this->tables))
-			{
-				foreach($this->tables as $table)
-					$sql .= "$table, ";
-
-				$sql = trim($sql, ", ");
-			}
-			else
-				throw new DatabaseException(elgg_echo('DatabaseException:NoTablesSpecified'));
-
-			// Joins on select queries
-			if ($this->query_type->query_type == 'select')
-			{
-				if (!empty($this->joins))
-				{
-					foreach($this->joins as $join)
-						$sql .= "$join ";
-				}
-			}
-
-			// Setting values
-			if (
-				($this->query_type->query_type == 'update') ||
-				($this->query_type->query_type == 'insert')
-			)
-			{
-				$sql .= "set ";
-
-				foreach ($this->sets as $set)
-					$sql .= "$set, ";
-
-				$sql = trim($sql, ", ") . " ";
-			}
-
-			// Where
-			if (!empty($this->where))
-			{
-				$sql .= " where 1 ";
-
-				foreach ($this->where as $where)
-					$sql .= "$where ";
-			}
-
-			// Access control
-			if (!empty($this->access_control))
-			{
-
-				// Catch missing Where
-				if (empty($this->where))
-					$sql .= " where 1 ";
-
-				$sql .= "{$this->access_control} ";
-			}
-			else
-				throw new DatabaseException(elgg_echo('DatabaseException:NoACL'));
-
-			// Order by
-			if (!empty($this->order))
-				$sql .= "{$this->order} ";
-
-			// Limits
-			if (!empty($this->limit_and_offset))
-				$sql .= "{$this->limit_and_offset} ";
-
-
-
-		} catch (Exception $e) {
-			trigger_error($e, E_USER_WARNING);
-		}
-
-
-		return $sql;
-	}
-
-}
-
+<?php
+/**
+ * @class Query Provides a framework to construct complex queries in a safer environment.
+ *
+ * The usage of this class depends on the type of query you are executing, but the basic idea is to
+ * construct a query out of pluggable classes.
+ *
+ * Once constructed SQL can be generated using the toString method, this should happen automatically
+ * if you pass the Query object to get_data or similar.
+ *
+ * To construct a query, create a new Query() object and begin populating it with the various classes
+ * that define the various aspects of the query.
+ *
+ * Notes:
+ * 	- You do not have to specify things in any particular order, provided you specify all required
+ * 	  components.
+ *  - With database tables you do not have to specify your db prefix, this will be added automatically.
+ *  - When constructing your query keep an eye on the error log - any problems will get spit out here.
+ * 	  Note also that __toString won't let you throw Exceptions (!!!) so these are caught and echoed to
+ *    the log instead.
+ *
+ * Here is an example of a select query which requests some data out of the entities table with an
+ * order and limit that uses a subset where and some normal where queries:
+ *
+ * <blockquote>
+ * 		// Construct the query
+ * 		$query = new Query();
+ *
+ * 		// Say which table we're interested in
+ * 		$query->addTable(new TableQueryComponent("entities"));
+ *
+ * 		// What fields are we interested in
+ * 		$query->addSelectField(new SelectFieldQueryComponent("entities","*"));
+ *
+ * 		// Add access control (Default access control uses default fields on entities table.
+ * 		// Note that it will error without something specified here!
+ * 		$query->setAccessControl(new AccessControlQueryComponent());
+ *
+ * 		// Set a limit and offset, may be omitted.
+ * 		$query->setLimitAndOffset(new LimitOffsetQueryComponent(10,0));
+ *
+ * 		// Specify the order, may be omitted
+ * 		$query->setOrder(new OrderQueryComponent("entities", "subtype", "desc"));
+ *
+ * 		// Construct a where query
+ * 		//
+ * 		// This demonstrates a WhereSet which lets you have sub wheres, a
+ * 		// WhereStatic which lets you compare a table field against a value and a
+ * 		// Where which lets you compare a table/field with another table/field.
+ * 		$query->addWhere(
+ * 			new WhereSetQueryComponent(
+ * 				array(
+ * 					new WhereStaticQueryComponent("entities", "subtype","=", 1),
+ * 					new WhereQueryComponent("entities","subtype","=", "entities", "subtype")
+ * 				)
+ * 			)
+ * 		);
+ *
+ * 		get_data($query);
+ * </blockquote>
+ *
+ * @author Curverider Ltd
+ */
+class Query
+{
+
+	/// The limit of the query
+	private $limit_and_offset;
+
+	/// Fields to return on a query
+	private $fields;
+
+	/// Tables to use in a from query
+	private $tables;
+
+	/// Join tables
+	private $joins;
+
+	/// Set values
+	private $sets;
+
+	/// Where query
+	private $where;
+
+	/// Order by
+	private $order;
+
+	/// The query type
+	private $query_type;
+
+	/// ACL
+	private $access_control;
+
+	/**
+	 * Construct query & initialise variables
+	 */
+	function __construct()
+	{
+		$this->fields = array();
+		$this->tables = array();
+		$this->joins = array();
+		$this->where = array();
+		$this->sets = array();
+
+		$this->setQueryType(new SelectQueryTypeQueryComponent());
+	}
+
+	/**
+	 * Add limits and offsets to the query.
+	 *
+	 * @param LimitOffsetQueryComponent $component The limit and offset.
+	 */
+	public function setLimitAndOffset(LimitOffsetQueryComponent $component) { $this->limit_and_offset = $component; }
+
+	/**
+	 * Reset and set the field to the select statement.
+	 *
+	 * @param SelectFieldQueryComponent $component Table and field component.
+	 */
+	public function setSelectField(SelectFieldQueryComponent $component)
+	{
+		$this->fields = array();
+		return $this->addSelectField($component);
+	}
+
+	/**
+	 * Add a select field.
+	 *
+	 * @param SelectFieldQueryComponent $component Add a component.
+	 */
+	public function addSelectField(SelectFieldQueryComponent $component) { $this->fields[] = $component; }
+
+	/**
+	 * Add a join to the component.
+	 *
+	 * @param JoinQueryComponent $component The join.
+	 */
+	public function addJoin(JoinQueryComponent $component) { $this->joins[] = $component; }
+
+	/**
+	 * Set a field value in an update or insert statement.
+	 *
+	 * @param SetQueryComponent $component Fields to set.
+	 */
+	public function addSet(SetQueryComponent $component) { $this->sets[] = $component; }
+
+	/**
+	 * Set the query type, i.e. "select", "update", "insert" & "delete".
+	 *
+	 * @param QueryTypeQueryComponent $component The query type.
+	 */
+	public function setQueryType(QueryTypeQueryComponent $component) { $this->query_type = $component; }
+
+	/**
+	 * Attach an order component.
+	 *
+	 * @param OrderQueryComponent $component The order component.
+	 */
+	public function setOrder(OrderQueryComponent $component) { $this->order = $component; }
+
+	/**
+	 * Add a table to the query.
+	 *
+	 * @param TableQueryComponent $component Table to add.
+	 */
+	public function addTable(TableQueryComponent $component) { $this->tables[] = $component; }
+
+	/**
+	 * Add a where clause to the query.
+	 *
+	 * @param WhereQueryComponent $component The where component
+	 */
+	public function addWhere(WhereQueryComponent $component) { $this->where[] = $component; }
+
+	/**
+	 * Set access control.
+	 *
+	 * @param AccessControlQueryComponent $component Access control.
+	 */
+	public function setAccessControl(AccessControlQueryComponent $component) { $this->access_control = $component; }
+
+	public function __toString()
+	{
+		global $CONFIG;
+
+		$sql = "";
+
+		try
+		{
+			// Query prefix & fields
+			if (!empty($this->query_type))
+			{
+				$sql .= "{$this->query_type} ";
+
+				if (!empty($this->fields))
+				{
+					$fields = "";
+
+					foreach ($this->fields as $field)
+						$fields .= "$field";
+
+					$sql .= " $fields from ";
+				}
+				else
+					throw new DatabaseException(elgg_echo('DatabaseException:SelectFieldsMissing'));
+			}
+			else
+				throw new DatabaseException(elgg_echo('DatabaseException:UnspecifiedQueryType'));
+
+			// Tables
+			if (!empty($this->tables))
+			{
+				foreach($this->tables as $table)
+					$sql .= "$table, ";
+
+				$sql = trim($sql, ", ");
+			}
+			else
+				throw new DatabaseException(elgg_echo('DatabaseException:NoTablesSpecified'));
+
+			// Joins on select queries
+			if ($this->query_type->query_type == 'select')
+			{
+				if (!empty($this->joins))
+				{
+					foreach($this->joins as $join)
+						$sql .= "$join ";
+				}
+			}
+
+			// Setting values
+			if (
+				($this->query_type->query_type == 'update') ||
+				($this->query_type->query_type == 'insert')
+			)
+			{
+				$sql .= "set ";
+
+				foreach ($this->sets as $set)
+					$sql .= "$set, ";
+
+				$sql = trim($sql, ", ") . " ";
+			}
+
+			// Where
+			if (!empty($this->where))
+			{
+				$sql .= " where 1 ";
+
+				foreach ($this->where as $where)
+					$sql .= "$where ";
+			}
+
+			// Access control
+			if (!empty($this->access_control))
+			{
+
+				// Catch missing Where
+				if (empty($this->where))
+					$sql .= " where 1 ";
+
+				$sql .= "{$this->access_control} ";
+			}
+			else
+				throw new DatabaseException(elgg_echo('DatabaseException:NoACL'));
+
+			// Order by
+			if (!empty($this->order))
+				$sql .= "{$this->order} ";
+
+			// Limits
+			if (!empty($this->limit_and_offset))
+				$sql .= "{$this->limit_and_offset} ";
+
+
+
+		} catch (Exception $e) {
+			trigger_error($e, E_USER_WARNING);
+		}
+
+
+		return $sql;
+	}
+
+}
+
diff --git a/engine/classes/QueryComponent.php b/engine/classes/QueryComponent.php
index cfe7683b1..148d07a2c 100644
--- a/engine/classes/QueryComponent.php
+++ b/engine/classes/QueryComponent.php
@@ -1,42 +1,42 @@
-<?php
-/**
- * @class QueryComponent Query component superclass.
- * Component of a query.
- * @author Curverider Ltd
- * @see Query
- */
-abstract class QueryComponent
-{
-	/**
-	 * Associative array of fields and values
-	 */
-	private $fields;
-
-	function __construct()
-	{
-		$this->fields = array();
-	}
-
-	/**
-	 * Class member get overloading
-	 *
-	 * @param string $name
-	 * @return mixed
-	 */
-	function __get($name) {
-		return $this->fields[$name];
-	}
-
-	/**
-	 * Class member set overloading
-	 *
-	 * @param string $name
-	 * @param mixed $value
-	 * @return void
-	 */
-	function __set($name, $value) {
-		$this->fields[$name] = $value;
-
-		return true;
-	}
-}
+<?php
+/**
+ * @class QueryComponent Query component superclass.
+ * Component of a query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+abstract class QueryComponent
+{
+	/**
+	 * Associative array of fields and values
+	 */
+	private $fields;
+
+	function __construct()
+	{
+		$this->fields = array();
+	}
+
+	/**
+	 * Class member get overloading
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	function __get($name) {
+		return $this->fields[$name];
+	}
+
+	/**
+	 * Class member set overloading
+	 *
+	 * @param string $name
+	 * @param mixed $value
+	 * @return void
+	 */
+	function __set($name, $value) {
+		$this->fields[$name] = $value;
+
+		return true;
+	}
+}
diff --git a/engine/classes/QueryTypeQueryComponent.php b/engine/classes/QueryTypeQueryComponent.php
index 231faa733..024fad036 100644
--- a/engine/classes/QueryTypeQueryComponent.php
+++ b/engine/classes/QueryTypeQueryComponent.php
@@ -1,14 +1,14 @@
-<?php
-/**
- * @class QueryTypeQueryComponent
- * What type of query is this?
- * @author Curverider Ltd
- * @see Query
- */
-abstract class QueryTypeQueryComponent extends QueryComponent
-{
-	function __toString()
-	{
-		return $this->query_type;
-	}
-}
+<?php
+/**
+ * @class QueryTypeQueryComponent
+ * What type of query is this?
+ * @author Curverider Ltd
+ * @see Query
+ */
+abstract class QueryTypeQueryComponent extends QueryComponent
+{
+	function __toString()
+	{
+		return $this->query_type;
+	}
+}
diff --git a/engine/classes/RegistrationException.php b/engine/classes/RegistrationException.php
index 5efea3904..882393dc4 100644
--- a/engine/classes/RegistrationException.php
+++ b/engine/classes/RegistrationException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * RegistrationException
- * Could not register a new user for whatever reason.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
+<?php
+/**
+ * RegistrationException
+ * Could not register a new user for whatever reason.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
 class RegistrationException extends InstallationException {}
 \ No newline at end of file
diff --git a/engine/classes/SecurityException.php b/engine/classes/SecurityException.php
index 3075f0b8e..3e0f933fe 100644
--- a/engine/classes/SecurityException.php
+++ b/engine/classes/SecurityException.php
@@ -1,10 +1,10 @@
-<?php
-/**
- * SecurityException
- * An Security Exception, throw when a Security Exception occurs. Subclass for specific Security Execeptions (access problems etc)
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Exceptions
- */
-class SecurityException extends Exception {}
+<?php
+/**
+ * SecurityException
+ * An Security Exception, throw when a Security Exception occurs. Subclass for specific Security Execeptions (access problems etc)
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Exceptions
+ */
+class SecurityException extends Exception {}
diff --git a/engine/classes/SelectFieldQueryComponent.php b/engine/classes/SelectFieldQueryComponent.php
index fbc4a81c1..d490319b3 100644
--- a/engine/classes/SelectFieldQueryComponent.php
+++ b/engine/classes/SelectFieldQueryComponent.php
@@ -1,28 +1,28 @@
-<?php
-/**
- * @class SelectFieldQueryComponent Class representing a select field.
- * This class represents a select field component.
- * @author Curverider Ltd
- * @see Query
- */
-class SelectFieldQueryComponent extends QueryComponent
-{
-	/**
-	 * Construct a select field component
-	 *
-	 * @param string $table The table containing the field.
-	 * @param string $field The field or "*"
-	 */
-	function __construct($table, $field)
-	{
-		global $CONFIG;
-
-		$this->table = $CONFIG->dbprefix . sanitise_string($table);
-		$this->field = sanitise_string($field);
-	}
-
-	function __toString()
-	{
-		return "{$this->table}.{$this->field}";
-	}
-}
+<?php
+/**
+ * @class SelectFieldQueryComponent Class representing a select field.
+ * This class represents a select field component.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class SelectFieldQueryComponent extends QueryComponent
+{
+	/**
+	 * Construct a select field component
+	 *
+	 * @param string $table The table containing the field.
+	 * @param string $field The field or "*"
+	 */
+	function __construct($table, $field)
+	{
+		global $CONFIG;
+
+		$this->table = $CONFIG->dbprefix . sanitise_string($table);
+		$this->field = sanitise_string($field);
+	}
+
+	function __toString()
+	{
+		return "{$this->table}.{$this->field}";
+	}
+}
diff --git a/engine/classes/SelectQueryTypeQueryComponent.php b/engine/classes/SelectQueryTypeQueryComponent.php
index 61e7e5017..44bf73095 100644
--- a/engine/classes/SelectQueryTypeQueryComponent.php
+++ b/engine/classes/SelectQueryTypeQueryComponent.php
@@ -1,14 +1,14 @@
-<?php
-/**
- * @class SelectQueryTypeQueryComponent
- * A select query.
- * @author Curverider Ltd
- * @see Query
- */
-class SelectQueryTypeQueryComponent extends QueryTypeQueryComponent
-{
-	function __construct()
-	{
-		$this->query_type = "SELECT";
-	}
-}
+<?php
+/**
+ * @class SelectQueryTypeQueryComponent
+ * A select query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class SelectQueryTypeQueryComponent extends QueryTypeQueryComponent
+{
+	function __construct()
+	{
+		$this->query_type = "SELECT";
+	}
+}
diff --git a/engine/classes/SetQueryComponent.php b/engine/classes/SetQueryComponent.php
index 0acd5718c..3922852e9 100644
--- a/engine/classes/SetQueryComponent.php
+++ b/engine/classes/SetQueryComponent.php
@@ -1,33 +1,33 @@
-<?php
-/**
- * @class SetQueryComponent Set query.
- * Represents an update set query.
- * @author Curverider Ltd
- * @see Query
- */
-class SetQueryComponent extends QueryComponent
-{
-	/**
-	 * Construct a setting query
-	 *
-	 * @param string $table The table to modify
-	 * @param string $field The field to modify
-	 * @param mixed $value The value to set it to
-	 */
-	function __construct($table, $field, $value)
-	{
-		global $CONFIG;
-
-		$this->table = $CONFIG->dbprefix . sanitise_string($table);
-		$this->field = sanitise_string($field);
-		if (is_numeric($value))
-			$this->value = (int)$value;
-		else
-			$this->value = "'".sanitise_string($value)."'";
-	}
-
-	function __toString()
-	{
-		return "{$this->table}.{$this->field}={$this->value}";
-	}
-}
+<?php
+/**
+ * @class SetQueryComponent Set query.
+ * Represents an update set query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class SetQueryComponent extends QueryComponent
+{
+	/**
+	 * Construct a setting query
+	 *
+	 * @param string $table The table to modify
+	 * @param string $field The field to modify
+	 * @param mixed $value The value to set it to
+	 */
+	function __construct($table, $field, $value)
+	{
+		global $CONFIG;
+
+		$this->table = $CONFIG->dbprefix . sanitise_string($table);
+		$this->field = sanitise_string($field);
+		if (is_numeric($value))
+			$this->value = (int)$value;
+		else
+			$this->value = "'".sanitise_string($value)."'";
+	}
+
+	function __toString()
+	{
+		return "{$this->table}.{$this->field}={$this->value}";
+	}
+}
diff --git a/engine/classes/SimpleQuery.php b/engine/classes/SimpleQuery.php
index cf5a18a50..adddaadff 100644
--- a/engine/classes/SimpleQuery.php
+++ b/engine/classes/SimpleQuery.php
@@ -1,152 +1,152 @@
-<?php
-/**
- * @class SimpleQuery A wrapper for Query which provides simple interface for common functions.
- *
- * This class provides simple interface functions for constructing a (reasonably) standard database
- * query.
- *
- * The constructor for this class sets a number of defaults, for example sets default access controls
- * and a limit and offset - to change this then set it manually.
- *
- * @author Curverider Ltd
- * @see Query
- */
-class SimpleQuery extends Query
-{
-	function __construct()
-	{
-		parent::__construct();
-
-		// Set a default query type (select)
-		$this->simpleQueryType();
-
-		// Set a default access control
-		$this->simpleAccessControl();
-
-		// Set default limit and offset
-		$this->simpleLimitAndOffset();
-	}
-
-	/**
-	 * Set the query type.
-	 *
-	 * @param string $type The type of search - available are "select", "update", "delete", "insert".
-	 */
-	public function simpleQueryType($type = "select")
-	{
-		$type = strtolower(sanitise_string($type));
-
-		switch ($type)
-		{
-			case "insert" :
-				return $this->setQueryType(InsertQueryTypeQueryComponent());
-			break;
-			case "delete" :
-				return $this->setQueryType(DeleteQueryTypeQueryComponent());
-			break;
-			case "update" :
-				return $this->setQueryType(UpdateQueryTypeQueryComponent());
-			break;
-			default: return $this->setQueryType(SelectQueryTypeQueryComponent());
-		}
-	}
-
-	/**
-	 * Set a field to query in a select statement.
-	 *
-	 * @param string $table Table to query.
-	 * @param string $field Field in that table.
-	 */
-	public function simpleSelectField($table, $field) { return $this->setSelectField(new SelectFieldQueryComponent($table, $field)); }
-
-	/**
-	 * Add a select field to query in a select statement.
-	 *
-	 * @param string $table Table to query.
-	 * @param string $field Field in that table.
-	 */
-	public function simpleAddSelectField($table, $field) { return $this->addSelectField(new SelectFieldQueryComponent($table, $field)); }
-
-	/**
-	 * Add a set value to an update query.
-	 *
-	 * @param string $table The table to update.
-	 * @param string $field The field in the table.
-	 * @param mixed $value The value to set it to.
-	 */
-	public function simpleSet($table, $field, $value) { return $this->addSet(new SetQueryComponent($table, $field, $value)); }
-
-	/**
-	 * Add a join to the table.
-	 *
-	 * @param string $table Table one to join...
-	 * @param string $field Field 1 with...
-	 * @param string $table2 Table 2 ...
-	 * @param string $field2 Field...
-	 * @param string $operator Using this operator
-	 */
-	public function simpleJoin($table1, $field1, $table2, $field2, $operator = "=") { return $this->addJoin(new JoinQueryComponent($table1, $field1, $table2, $field2, $operator)); }
-
-	/**
-	 * Add a table to the query.
-	 *
-	 * @param string $table The table.
-	 */
-	public function simpleTable($table) { return $this->addTable(new TableQueryComponent($table)); }
-
-	/**
-	 * Compare one table/field to another table/field.
-	 *
-	 * @param string $left_table The table on the left of the operator
-	 * @param string $left_field The left field
-	 * @param string $operator The operator eg "=" or "<"
-	 * @param string $right_table The table on the right of the operator
-	 * @param string $right_field The right field
-	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
-	 */
-	public function simpleWhereOnTable($left_table, $left_field, $operator, $right_table, $right_field, $link_operator = "and") { return $this->addWhere(new WhereQueryComponent($left_table, $left_field, $operator, $right_table, $right_field, $link_operator)); }
-
-	/**
-	 * Compare one table/field to a value.
-	 *
-	 * @param string $left_table The table on the left of the operator
-	 * @param string $left_field The left field
-	 * @param string $operator The operator eg "=" or "<"
-	 * @param string $value The value
-	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
-	 */
-	public function simpleWhereOnValue($left_table, $left_field, $operator, $value, $link_operator = "and") { return $this->addWhere(new WhereStaticQueryComponent($left_table, $left_field, $operator, $value, $link_operator)); }
-
-	/**
-	 * Set access control.
-	 *
-	 * @param string $acl_table The table where the access control field is.
-	 * @param string $acl_field The field containing the access control.
-	 * @param string $object_owner_id_field The field in $object_owner_table containing the owner information.
-	 */
-	public function simpleAccessControl($acl_table = "entities", $acl_field = "access_id", $object_owner_id_field = "owner_guid") { return $this->setAccessControl(new AccessControlQueryComponent($acl_table, $acl_field, $acl_table, $object_owner_id_field)); }
-
-	/**
-	 * Set the limit and offset.
-	 *
-	 * @param int $limit The limit.
-	 * @param int $offset The offset.
-	 */
-	public function simpleLimitAndOffset($limit = 25, $offset = 0) { return $this->setLimitAndOffset(new LimitOffsetQueryComponent($limit, $offset)); }
-
-	/**
-	 * Set the order query.
-	 *
-	 * @param string $table The table to query
-	 * @param string $field The field to query
-	 * @param string $order Order the query
-	 */
-	public function simpleOrder($table, $field, $order = "desc")
-	{
-		$table = sanitise_string($table);
-		$field = sanitise_string($field);
-		$order = strtolower(sanitise_string($order));
-
-		return $this->setOrder(new OrderQueryComponent($table, $field, $order)); break;
-	}
-}
+<?php
+/**
+ * @class SimpleQuery A wrapper for Query which provides simple interface for common functions.
+ *
+ * This class provides simple interface functions for constructing a (reasonably) standard database
+ * query.
+ *
+ * The constructor for this class sets a number of defaults, for example sets default access controls
+ * and a limit and offset - to change this then set it manually.
+ *
+ * @author Curverider Ltd
+ * @see Query
+ */
+class SimpleQuery extends Query
+{
+	function __construct()
+	{
+		parent::__construct();
+
+		// Set a default query type (select)
+		$this->simpleQueryType();
+
+		// Set a default access control
+		$this->simpleAccessControl();
+
+		// Set default limit and offset
+		$this->simpleLimitAndOffset();
+	}
+
+	/**
+	 * Set the query type.
+	 *
+	 * @param string $type The type of search - available are "select", "update", "delete", "insert".
+	 */
+	public function simpleQueryType($type = "select")
+	{
+		$type = strtolower(sanitise_string($type));
+
+		switch ($type)
+		{
+			case "insert" :
+				return $this->setQueryType(InsertQueryTypeQueryComponent());
+			break;
+			case "delete" :
+				return $this->setQueryType(DeleteQueryTypeQueryComponent());
+			break;
+			case "update" :
+				return $this->setQueryType(UpdateQueryTypeQueryComponent());
+			break;
+			default: return $this->setQueryType(SelectQueryTypeQueryComponent());
+		}
+	}
+
+	/**
+	 * Set a field to query in a select statement.
+	 *
+	 * @param string $table Table to query.
+	 * @param string $field Field in that table.
+	 */
+	public function simpleSelectField($table, $field) { return $this->setSelectField(new SelectFieldQueryComponent($table, $field)); }
+
+	/**
+	 * Add a select field to query in a select statement.
+	 *
+	 * @param string $table Table to query.
+	 * @param string $field Field in that table.
+	 */
+	public function simpleAddSelectField($table, $field) { return $this->addSelectField(new SelectFieldQueryComponent($table, $field)); }
+
+	/**
+	 * Add a set value to an update query.
+	 *
+	 * @param string $table The table to update.
+	 * @param string $field The field in the table.
+	 * @param mixed $value The value to set it to.
+	 */
+	public function simpleSet($table, $field, $value) { return $this->addSet(new SetQueryComponent($table, $field, $value)); }
+
+	/**
+	 * Add a join to the table.
+	 *
+	 * @param string $table Table one to join...
+	 * @param string $field Field 1 with...
+	 * @param string $table2 Table 2 ...
+	 * @param string $field2 Field...
+	 * @param string $operator Using this operator
+	 */
+	public function simpleJoin($table1, $field1, $table2, $field2, $operator = "=") { return $this->addJoin(new JoinQueryComponent($table1, $field1, $table2, $field2, $operator)); }
+
+	/**
+	 * Add a table to the query.
+	 *
+	 * @param string $table The table.
+	 */
+	public function simpleTable($table) { return $this->addTable(new TableQueryComponent($table)); }
+
+	/**
+	 * Compare one table/field to another table/field.
+	 *
+	 * @param string $left_table The table on the left of the operator
+	 * @param string $left_field The left field
+	 * @param string $operator The operator eg "=" or "<"
+	 * @param string $right_table The table on the right of the operator
+	 * @param string $right_field The right field
+	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
+	 */
+	public function simpleWhereOnTable($left_table, $left_field, $operator, $right_table, $right_field, $link_operator = "and") { return $this->addWhere(new WhereQueryComponent($left_table, $left_field, $operator, $right_table, $right_field, $link_operator)); }
+
+	/**
+	 * Compare one table/field to a value.
+	 *
+	 * @param string $left_table The table on the left of the operator
+	 * @param string $left_field The left field
+	 * @param string $operator The operator eg "=" or "<"
+	 * @param string $value The value
+	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
+	 */
+	public function simpleWhereOnValue($left_table, $left_field, $operator, $value, $link_operator = "and") { return $this->addWhere(new WhereStaticQueryComponent($left_table, $left_field, $operator, $value, $link_operator)); }
+
+	/**
+	 * Set access control.
+	 *
+	 * @param string $acl_table The table where the access control field is.
+	 * @param string $acl_field The field containing the access control.
+	 * @param string $object_owner_id_field The field in $object_owner_table containing the owner information.
+	 */
+	public function simpleAccessControl($acl_table = "entities", $acl_field = "access_id", $object_owner_id_field = "owner_guid") { return $this->setAccessControl(new AccessControlQueryComponent($acl_table, $acl_field, $acl_table, $object_owner_id_field)); }
+
+	/**
+	 * Set the limit and offset.
+	 *
+	 * @param int $limit The limit.
+	 * @param int $offset The offset.
+	 */
+	public function simpleLimitAndOffset($limit = 25, $offset = 0) { return $this->setLimitAndOffset(new LimitOffsetQueryComponent($limit, $offset)); }
+
+	/**
+	 * Set the order query.
+	 *
+	 * @param string $table The table to query
+	 * @param string $field The field to query
+	 * @param string $order Order the query
+	 */
+	public function simpleOrder($table, $field, $order = "desc")
+	{
+		$table = sanitise_string($table);
+		$field = sanitise_string($field);
+		$order = strtolower(sanitise_string($order));
+
+		return $this->setOrder(new OrderQueryComponent($table, $field, $order)); break;
+	}
+}
diff --git a/engine/classes/SuccessResult.php b/engine/classes/SuccessResult.php
index db5769d58..e769fbada 100644
--- a/engine/classes/SuccessResult.php
+++ b/engine/classes/SuccessResult.php
@@ -1,22 +1,22 @@
-<?php
-/**
- * SuccessResult
- * Generic success result class, extend if you want to do something special.
- *
- * @author Curverider Ltd <info@elgg.com>
- * @package Elgg
- * @subpackage Core
- */
-class SuccessResult extends GenericResult {
-	public static $RESULT_SUCCESS = 0;  // Do not change this from 0
-
-	public function SuccessResult($result) {
-		$this->setResult($result);
-		$this->setStatusCode(SuccessResult::$RESULT_SUCCESS);
-	}
-
-	public static function getInstance($result) {
-		// Return a new error object.
-		return new SuccessResult($result);
-	}
+<?php
+/**
+ * SuccessResult
+ * Generic success result class, extend if you want to do something special.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage Core
+ */
+class SuccessResult extends GenericResult {
+	public static $RESULT_SUCCESS = 0;  // Do not change this from 0
+
+	public function SuccessResult($result) {
+		$this->setResult($result);
+		$this->setStatusCode(SuccessResult::$RESULT_SUCCESS);
+	}
+
+	public static function getInstance($result) {
+		// Return a new error object.
+		return new SuccessResult($result);
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/TableQueryComponent.php b/engine/classes/TableQueryComponent.php
index 54e6ab021..406ee98d0 100644
--- a/engine/classes/TableQueryComponent.php
+++ b/engine/classes/TableQueryComponent.php
@@ -1,21 +1,21 @@
-<?php
-/**
- * @class TableQueryComponent
- * List of tables to select from or insert into.
- * @author Curverider Ltd
- * @see Query
- */
-class TableQueryComponent extends QueryComponent
-{
-	function __construct($table)
-	{
-		global $CONFIG;
-
-		$this->table = $CONFIG->dbprefix . sanitise_string($table);
-	}
-
-	function __toString()
-	{
-		return $this->table;
-	}
-}
+<?php
+/**
+ * @class TableQueryComponent
+ * List of tables to select from or insert into.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class TableQueryComponent extends QueryComponent
+{
+	function __construct($table)
+	{
+		global $CONFIG;
+
+		$this->table = $CONFIG->dbprefix . sanitise_string($table);
+	}
+
+	function __toString()
+	{
+		return $this->table;
+	}
+}
diff --git a/engine/classes/UpdateQueryTypeQueryComponent.php b/engine/classes/UpdateQueryTypeQueryComponent.php
index 226b14be7..1dc19216e 100644
--- a/engine/classes/UpdateQueryTypeQueryComponent.php
+++ b/engine/classes/UpdateQueryTypeQueryComponent.php
@@ -1,14 +1,14 @@
-<?php
-/**
- * @class UpdateQueryTypeQueryComponent
- * An update query.
- * @author Curverider Ltd
- * @see Query
- */
-class UpdateQueryTypeQueryComponent extends QueryTypeQueryComponent
-{
-	function __construct()
-	{
-		$this->query_type = "UPDATE";
-	}
-}
+<?php
+/**
+ * @class UpdateQueryTypeQueryComponent
+ * An update query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class UpdateQueryTypeQueryComponent extends QueryTypeQueryComponent
+{
+	function __construct()
+	{
+		$this->query_type = "UPDATE";
+	}
+}
diff --git a/engine/classes/WhereQueryComponent.php b/engine/classes/WhereQueryComponent.php
index 3130be7f8..94e4b08d7 100644
--- a/engine/classes/WhereQueryComponent.php
+++ b/engine/classes/WhereQueryComponent.php
@@ -1,44 +1,44 @@
-<?php
-/**
- * @class WhereQueryComponent
- * A component of a where query.
- * @author Curverider Ltd
- * @see Query
- */
-class WhereQueryComponent extends QueryComponent
-{
-	/**
-	 * A where query.
-	 *
-	 * @param string $left_table The table on the left of the operator
-	 * @param string $left_field The left field
-	 * @param string $operator The operator eg "=" or "<"
-	 * @param string $right_table The table on the right of the operator
-	 * @param string $right_field The right field
-	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
-	 */
-	function __construct($left_table, $left_field, $operator, $right_table, $right_field, $link_operator = "and")
-	{
-		global $CONFIG;
-
-		$this->link_operator = sanitise_string($link_operator);
-		$this->left_table = $CONFIG->dbprefix . sanitise_string($left_table);
-		$this->left_field = sanitise_string($left_field);
-		$this->operator = sanitise_string($operator);
-		$this->right_table = $CONFIG->dbprefix . sanitise_string($right_table);
-		$this->right_field = sanitise_string($right_field);
-	}
-
-	/**
-	 * Return the SQL without the link operator.
-	 */
-	public function toStringNoLink()
-	{
-		return "{$this->left_table }.{$this->left_field} {$this->operator} {$this->right_table}.{$this->right_field}";
-	}
-
-	function __toString()
-	{
-		return "{$this->link_operator} " . $this->toStringNoLink();
-	}
-}
+<?php
+/**
+ * @class WhereQueryComponent
+ * A component of a where query.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class WhereQueryComponent extends QueryComponent
+{
+	/**
+	 * A where query.
+	 *
+	 * @param string $left_table The table on the left of the operator
+	 * @param string $left_field The left field
+	 * @param string $operator The operator eg "=" or "<"
+	 * @param string $right_table The table on the right of the operator
+	 * @param string $right_field The right field
+	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
+	 */
+	function __construct($left_table, $left_field, $operator, $right_table, $right_field, $link_operator = "and")
+	{
+		global $CONFIG;
+
+		$this->link_operator = sanitise_string($link_operator);
+		$this->left_table = $CONFIG->dbprefix . sanitise_string($left_table);
+		$this->left_field = sanitise_string($left_field);
+		$this->operator = sanitise_string($operator);
+		$this->right_table = $CONFIG->dbprefix . sanitise_string($right_table);
+		$this->right_field = sanitise_string($right_field);
+	}
+
+	/**
+	 * Return the SQL without the link operator.
+	 */
+	public function toStringNoLink()
+	{
+		return "{$this->left_table }.{$this->left_field} {$this->operator} {$this->right_table}.{$this->right_field}";
+	}
+
+	function __toString()
+	{
+		return "{$this->link_operator} " . $this->toStringNoLink();
+	}
+}
diff --git a/engine/classes/WhereSetQueryComponent.php b/engine/classes/WhereSetQueryComponent.php
index b5fe439a0..ab4719731 100644
--- a/engine/classes/WhereSetQueryComponent.php
+++ b/engine/classes/WhereSetQueryComponent.php
@@ -1,41 +1,41 @@
-<?php
-/**
- * @class WhereSetQueryComponent
- * A where query that may contain other where queries (in brackets).
- * @author Curverider Ltd
- * @see Query
- */
-class WhereSetQueryComponent extends WhereQueryComponent
-{
-	/**
-	 * Construct a subset of wheres.
-	 *
-	 * @param array $wheres An array of WhereQueryComponent
-	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
-	 */
-	function __construct(array $wheres, $link_operator = "and")
-	{
-		$this->link_operator = sanitise_string($link_operator);
-		$this->wheres = $wheres;
-	}
-
-	public function toStringNoLink()
-	{
-		$cnt = 0;
-		$string = " (";
-		foreach ($this->wheres as $where) {
-			if (!($where instanceof WhereQueryComponent))
-				throw new DatabaseException(elgg_echo('DatabaseException:WhereSetNonQuery'));
-
-			if (!$cnt)
-				$string.= $where->toStringNoLink();
-			else
-				$string.=" $where ";
-
-			$cnt ++;
-		}
-		$string .= ")";
-
-		return $string;
-	}
-}
+<?php
+/**
+ * @class WhereSetQueryComponent
+ * A where query that may contain other where queries (in brackets).
+ * @author Curverider Ltd
+ * @see Query
+ */
+class WhereSetQueryComponent extends WhereQueryComponent
+{
+	/**
+	 * Construct a subset of wheres.
+	 *
+	 * @param array $wheres An array of WhereQueryComponent
+	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
+	 */
+	function __construct(array $wheres, $link_operator = "and")
+	{
+		$this->link_operator = sanitise_string($link_operator);
+		$this->wheres = $wheres;
+	}
+
+	public function toStringNoLink()
+	{
+		$cnt = 0;
+		$string = " (";
+		foreach ($this->wheres as $where) {
+			if (!($where instanceof WhereQueryComponent))
+				throw new DatabaseException(elgg_echo('DatabaseException:WhereSetNonQuery'));
+
+			if (!$cnt)
+				$string.= $where->toStringNoLink();
+			else
+				$string.=" $where ";
+
+			$cnt ++;
+		}
+		$string .= ")";
+
+		return $string;
+	}
+}
diff --git a/engine/classes/WhereStaticQueryComponent.php b/engine/classes/WhereStaticQueryComponent.php
index ddc036fd1..6ae07636f 100644
--- a/engine/classes/WhereStaticQueryComponent.php
+++ b/engine/classes/WhereStaticQueryComponent.php
@@ -1,40 +1,40 @@
-<?php
-/**
- * @class WhereStaticQueryComponent
- * A component of a where query where there is no right hand table, rather a static value.
- * @author Curverider Ltd
- * @see Query
- */
-class WhereStaticQueryComponent extends WhereQueryComponent
-{
-	/**
-	 * A where query.
-	 *
-	 * @param string $left_table The table on the left of the operator
-	 * @param string $left_field The left field
-	 * @param string $operator The operator eg "=" or "<"
-	 * @param string $value The value
-	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
-	 */
-	function __construct($left_table, $left_field, $operator, $value, $link_operator = "and")
-	{
-		global $CONFIG;
-
-		$this->link_operator = sanitise_string($link_operator);
-		$this->left_table = $CONFIG->dbprefix . sanitise_string($left_table);
-		$this->left_field = sanitise_string($left_field);
-		$this->operator = sanitise_string($operator);
-		if (is_numeric($value))
-			$this->value = (int)$value;
-		else
-			$this->value = "'".sanitise_string($value)."'";
-	}
-
-	/**
-	 * Return the SQL without the link operator.
-	 */
-	public function toStringNoLink()
-	{
-		return "{$this->left_table }.{$this->left_field} {$this->operator} {$this->value}";
-	}
-}
+<?php
+/**
+ * @class WhereStaticQueryComponent
+ * A component of a where query where there is no right hand table, rather a static value.
+ * @author Curverider Ltd
+ * @see Query
+ */
+class WhereStaticQueryComponent extends WhereQueryComponent
+{
+	/**
+	 * A where query.
+	 *
+	 * @param string $left_table The table on the left of the operator
+	 * @param string $left_field The left field
+	 * @param string $operator The operator eg "=" or "<"
+	 * @param string $value The value
+	 * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or"
+	 */
+	function __construct($left_table, $left_field, $operator, $value, $link_operator = "and")
+	{
+		global $CONFIG;
+
+		$this->link_operator = sanitise_string($link_operator);
+		$this->left_table = $CONFIG->dbprefix . sanitise_string($left_table);
+		$this->left_field = sanitise_string($left_field);
+		$this->operator = sanitise_string($operator);
+		if (is_numeric($value))
+			$this->value = (int)$value;
+		else
+			$this->value = "'".sanitise_string($value)."'";
+	}
+
+	/**
+	 * Return the SQL without the link operator.
+	 */
+	public function toStringNoLink()
+	{
+		return "{$this->left_table }.{$this->left_field} {$this->operator} {$this->value}";
+	}
+}
diff --git a/engine/classes/XMLRPCArrayParameter.php b/engine/classes/XMLRPCArrayParameter.php
index 600f5d9a7..cbc647671 100644
--- a/engine/classes/XMLRPCArrayParameter.php
+++ b/engine/classes/XMLRPCArrayParameter.php
@@ -1,48 +1,48 @@
-<?php
-
-/**
- * @class XMLRPCArrayParameter An array containing other XMLRPCParameter objects.
- * @author Curverider Ltd
- */
-class XMLRPCArrayParameter extends XMLRPCParameter
-{
-	/**
-	 * Construct an array.
-	 *
-	 * @param array $parameters Optional array of parameters, if not provided then addField must be used.
-	 */
-	function __construct($parameters = NULL)
-	{
-		parent::__construct();
-		
-		if (is_array($parameters))
-		{
-			foreach ($parameters as $v)
-				$this->addField($v);
-		}
-	}
-	
-	/**
-	 * Add a field to the container.
-	 *
-	 * @param XMLRPCParameter $value The value.
-	 */
-	public function addField(XMLRPCParameter $value)
-	{
-		if (!is_array($this->value))
-			$this->value = array();
-			
-		$this->value[] = $value;
-	}
-	
-	function __toString() 
-	{
-		$params = "";
-		foreach ($this->value as $value)
-		{
-			$params .= "$value";
-		}
-		
-		return "<array><data>$params</data></array>";
-	}
+<?php
+
+/**
+ * @class XMLRPCArrayParameter An array containing other XMLRPCParameter objects.
+ * @author Curverider Ltd
+ */
+class XMLRPCArrayParameter extends XMLRPCParameter
+{
+	/**
+	 * Construct an array.
+	 *
+	 * @param array $parameters Optional array of parameters, if not provided then addField must be used.
+	 */
+	function __construct($parameters = NULL)
+	{
+		parent::__construct();
+		
+		if (is_array($parameters))
+		{
+			foreach ($parameters as $v)
+				$this->addField($v);
+		}
+	}
+	
+	/**
+	 * Add a field to the container.
+	 *
+	 * @param XMLRPCParameter $value The value.
+	 */
+	public function addField(XMLRPCParameter $value)
+	{
+		if (!is_array($this->value))
+			$this->value = array();
+			
+		$this->value[] = $value;
+	}
+	
+	function __toString() 
+	{
+		$params = "";
+		foreach ($this->value as $value)
+		{
+			$params .= "$value";
+		}
+		
+		return "<array><data>$params</data></array>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCBase64Parameter.php b/engine/classes/XMLRPCBase64Parameter.php
index b32e7f3da..21ef1e83f 100644
--- a/engine/classes/XMLRPCBase64Parameter.php
+++ b/engine/classes/XMLRPCBase64Parameter.php
@@ -1,24 +1,24 @@
-<?php
-/**
- * @class XMLRPCBase64Parameter A base 64 encoded blob of binary.
- * @author Curverider Ltd
- */
-class XMLRPCBase64Parameter extends XMLRPCParameter
-{
-	/**
-	 * Construct a base64 encoded block
-	 *
-	 * @param string $blob Unencoded binary blob
-	 */
-	function __construct($blob)
-	{
-		parent::__construct();
-		
-		$this->value = base64_encode($blob);
-	}
-	
-	function __toString() 
-	{
-		return "<value><base64>{$value}</base64></value>";
-	}
+<?php
+/**
+ * @class XMLRPCBase64Parameter A base 64 encoded blob of binary.
+ * @author Curverider Ltd
+ */
+class XMLRPCBase64Parameter extends XMLRPCParameter
+{
+	/**
+	 * Construct a base64 encoded block
+	 *
+	 * @param string $blob Unencoded binary blob
+	 */
+	function __construct($blob)
+	{
+		parent::__construct();
+		
+		$this->value = base64_encode($blob);
+	}
+	
+	function __toString() 
+	{
+		return "<value><base64>{$value}</base64></value>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCBoolParameter.php b/engine/classes/XMLRPCBoolParameter.php
index c2714ceff..3a1b00b88 100644
--- a/engine/classes/XMLRPCBoolParameter.php
+++ b/engine/classes/XMLRPCBoolParameter.php
@@ -1,20 +1,20 @@
-<?php
-/**
- * @class XMLRPCBoolParameter A boolean.
- * @author Curverider Ltd
- */
-class XMLRPCBoolParameter extends XMLRPCParameter
-{
-	function __construct($value)
-	{
-		parent::__construct();
-		
-		$this->value = (bool)$value; 
-	}
-	
-	function __toString() 
-	{
-		$code = ($this->value) ? "1" : "0";
-		return "<value><boolean>{$code}</boolean></value>";
-	}
+<?php
+/**
+ * @class XMLRPCBoolParameter A boolean.
+ * @author Curverider Ltd
+ */
+class XMLRPCBoolParameter extends XMLRPCParameter
+{
+	function __construct($value)
+	{
+		parent::__construct();
+		
+		$this->value = (bool)$value; 
+	}
+	
+	function __toString() 
+	{
+		$code = ($this->value) ? "1" : "0";
+		return "<value><boolean>{$code}</boolean></value>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCCall.php b/engine/classes/XMLRPCCall.php
index 09e8e6d6d..27801cf9f 100644
--- a/engine/classes/XMLRPCCall.php
+++ b/engine/classes/XMLRPCCall.php
@@ -1,60 +1,60 @@
-<?php
-/**
- * @class XMLRPCCall
- * This class represents 
- * @author Curverider Ltd
- */
-class XMLRPCCall
-{
-	/** Method name */
-	private $methodname;
-	/** Parameters */
-	private $params;
-	
-	/**
-	 * Construct a new XML RPC Call
-	 *
-	 * @param string $xml
-	 */
-	function __construct($xml)
-	{
-		$this->parse($xml);
-	}
-	
-	/**
-	 * Return the method name associated with the call.
-	 *
-	 * @return string
-	 */
-	public function getMethodName() { return $this->methodname; }
-	
-	/**
-	 * Return the parameters.
-	 * Returns a nested array of XmlElement.
-	 * 
-	 * @see XmlElement 
-	 * @return array
-	 */
-	public function getParameters() { return $this->params; }
-	
-	/**
-	 * Parse the xml into its components according to spec. 
-	 * This first version is a little primitive. 
-	 *
-	 * @param string $xml
-	 */
-	private function parse($xml)
-	{
-		$xml = xml_to_object($xml);
-		
-		// sanity check
-		if ((isset($xml->name)) && (strcasecmp($xml->name, "methodCall")!=0))
-			throw new CallException(elgg_echo('CallException:NotRPCCall'));
-		
-		// method name
-		$this->methodname = $xml->children[0]->content;
-		
-		// parameters 
-		$this->params = $xml->children[1]->children;			
-	}
+<?php
+/**
+ * @class XMLRPCCall
+ * This class represents 
+ * @author Curverider Ltd
+ */
+class XMLRPCCall
+{
+	/** Method name */
+	private $methodname;
+	/** Parameters */
+	private $params;
+	
+	/**
+	 * Construct a new XML RPC Call
+	 *
+	 * @param string $xml
+	 */
+	function __construct($xml)
+	{
+		$this->parse($xml);
+	}
+	
+	/**
+	 * Return the method name associated with the call.
+	 *
+	 * @return string
+	 */
+	public function getMethodName() { return $this->methodname; }
+	
+	/**
+	 * Return the parameters.
+	 * Returns a nested array of XmlElement.
+	 * 
+	 * @see XmlElement 
+	 * @return array
+	 */
+	public function getParameters() { return $this->params; }
+	
+	/**
+	 * Parse the xml into its components according to spec. 
+	 * This first version is a little primitive. 
+	 *
+	 * @param string $xml
+	 */
+	private function parse($xml)
+	{
+		$xml = xml_to_object($xml);
+		
+		// sanity check
+		if ((isset($xml->name)) && (strcasecmp($xml->name, "methodCall")!=0))
+			throw new CallException(elgg_echo('CallException:NotRPCCall'));
+		
+		// method name
+		$this->methodname = $xml->children[0]->content;
+		
+		// parameters 
+		$this->params = $xml->children[1]->children;			
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCDateParameter.php b/engine/classes/XMLRPCDateParameter.php
index 47ba88c0f..bb39167fc 100644
--- a/engine/classes/XMLRPCDateParameter.php
+++ b/engine/classes/XMLRPCDateParameter.php
@@ -1,27 +1,27 @@
-<?php
-/**
- * @class XMLRPCDateParameter An ISO8601 data and time.
- * @author Curverider Ltd
- */
-class XMLRPCDateParameter extends XMLRPCParameter
-{
-	/**
-	 * Construct a date
-	 *
-	 * @param int $timestamp The unix timestamp, or blank for "now".
-	 */
-	function __construct($timestamp = 0)
-	{
-		parent::__construct();
-		
-		$this->value = $timestamp;
-		if (!$timestamp)
-			$this->value = time(); 
-	}
-	
-	function __toString() 
-	{
-		$value = date('c', $this->value);
-		return "<value><dateTime.iso8601>{$value}</dateTime.iso8601></value>";
-	}
+<?php
+/**
+ * @class XMLRPCDateParameter An ISO8601 data and time.
+ * @author Curverider Ltd
+ */
+class XMLRPCDateParameter extends XMLRPCParameter
+{
+	/**
+	 * Construct a date
+	 *
+	 * @param int $timestamp The unix timestamp, or blank for "now".
+	 */
+	function __construct($timestamp = 0)
+	{
+		parent::__construct();
+		
+		$this->value = $timestamp;
+		if (!$timestamp)
+			$this->value = time(); 
+	}
+	
+	function __toString() 
+	{
+		$value = date('c', $this->value);
+		return "<value><dateTime.iso8601>{$value}</dateTime.iso8601></value>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCDoubleParameter.php b/engine/classes/XMLRPCDoubleParameter.php
index 64cbdff91..1f311b0e9 100644
--- a/engine/classes/XMLRPCDoubleParameter.php
+++ b/engine/classes/XMLRPCDoubleParameter.php
@@ -1,19 +1,19 @@
-<?php
-/**
- * @class XMLRPCDoubleParameter A double precision signed floating point number.
- * @author Curverider Ltd
- */
-class XMLRPCDoubleParameter extends XMLRPCParameter
-{
-	function __construct($value)
-	{
-		parent::__construct();
-		
-		$this->value = (float)$value; 
-	}
-	
-	function __toString() 
-	{
-		return "<value><double>{$this->value}</double></value>";
-	}
-}
+<?php
+/**
+ * @class XMLRPCDoubleParameter A double precision signed floating point number.
+ * @author Curverider Ltd
+ */
+class XMLRPCDoubleParameter extends XMLRPCParameter
+{
+	function __construct($value)
+	{
+		parent::__construct();
+		
+		$this->value = (float)$value; 
+	}
+	
+	function __toString() 
+	{
+		return "<value><double>{$this->value}</double></value>";
+	}
+}
diff --git a/engine/classes/XMLRPCErrorResponse.php b/engine/classes/XMLRPCErrorResponse.php
index 4dfcfafea..c204a3555 100644
--- a/engine/classes/XMLRPCErrorResponse.php
+++ b/engine/classes/XMLRPCErrorResponse.php
@@ -1,34 +1,34 @@
-<?php
-
-/**
- * @class XMLRPCErrorResponse
- * @author Curverider Ltd
- */
-class XMLRPCErrorResponse extends XMLRPCResponse
-{		
-	/**
-	 * Set the error response and error code.
-	 *
-	 * @param string $message The message
-	 * @param int $code Error code (default = system error as defined by http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php)
-	 */
-	function __construct($message, $code = -32400)
-	{
-		$this->addParameter(
-			new XMLRPCStructParameter(
-				array (
-					'faultCode' => new XMLRPCIntParameter($code),
-					'faultString' => new XMLRPCStringParameter($message)
-				)
-			)
-		);
-	}
-	
-	/**
-	 * Output to XML.
-	 */
-	public function __toString()
-	{
-		return "<methodResponse><fault><value>{$this->parameters[0]}</value></fault></methodResponse>";
-	}
+<?php
+
+/**
+ * @class XMLRPCErrorResponse
+ * @author Curverider Ltd
+ */
+class XMLRPCErrorResponse extends XMLRPCResponse
+{		
+	/**
+	 * Set the error response and error code.
+	 *
+	 * @param string $message The message
+	 * @param int $code Error code (default = system error as defined by http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php)
+	 */
+	function __construct($message, $code = -32400)
+	{
+		$this->addParameter(
+			new XMLRPCStructParameter(
+				array (
+					'faultCode' => new XMLRPCIntParameter($code),
+					'faultString' => new XMLRPCStringParameter($message)
+				)
+			)
+		);
+	}
+	
+	/**
+	 * Output to XML.
+	 */
+	public function __toString()
+	{
+		return "<methodResponse><fault><value>{$this->parameters[0]}</value></fault></methodResponse>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCIntParameter.php b/engine/classes/XMLRPCIntParameter.php
index 2305a66a7..1029d855b 100644
--- a/engine/classes/XMLRPCIntParameter.php
+++ b/engine/classes/XMLRPCIntParameter.php
@@ -1,19 +1,19 @@
-<?php
-/**
- * @class XMLRPCIntParameter An Integer.
- * @author Curverider Ltd
- */
-class XMLRPCIntParameter extends XMLRPCParameter
-{
-	function __construct($value)
-	{
-		parent::__construct();
-		
-		$this->value = (int)$value; 
-	}
-	
-	function __toString() 
-	{
-		return "<value><i4>{$this->value}</i4></value>";
-	}
-}
+<?php
+/**
+ * @class XMLRPCIntParameter An Integer.
+ * @author Curverider Ltd
+ */
+class XMLRPCIntParameter extends XMLRPCParameter
+{
+	function __construct($value)
+	{
+		parent::__construct();
+		
+		$this->value = (int)$value; 
+	}
+	
+	function __toString() 
+	{
+		return "<value><i4>{$this->value}</i4></value>";
+	}
+}
diff --git a/engine/classes/XMLRPCParameter.php b/engine/classes/XMLRPCParameter.php
index f9e04a073..aba4a4d7a 100644
--- a/engine/classes/XMLRPCParameter.php
+++ b/engine/classes/XMLRPCParameter.php
@@ -1,12 +1,12 @@
-<?php
-/**
- * @class XMLRPCParameter Superclass for all RPC parameters.
- * @author Curverider Ltd
- */
-abstract class XMLRPCParameter
-{
-	protected $value;
-
-	function __construct() { }
-		
+<?php
+/**
+ * @class XMLRPCParameter Superclass for all RPC parameters.
+ * @author Curverider Ltd
+ */
+abstract class XMLRPCParameter
+{
+	protected $value;
+
+	function __construct() { }
+		
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCResponse.php b/engine/classes/XMLRPCResponse.php
index 1dea8d682..f57dd4ad8 100644
--- a/engine/classes/XMLRPCResponse.php
+++ b/engine/classes/XMLRPCResponse.php
@@ -1,29 +1,29 @@
-<?php
-
-/**
- * @class XMLRPCResponse XML-RPC Response. 
- * @author Curverider Ltd
- */
-abstract class XMLRPCResponse
-{
-	/** An array of parameters */
-	protected $parameters = array();
-	
-	/**
-	 * Add a parameter here.
-	 *
-	 * @param XMLRPCParameter $param The parameter.
-	 */
-	public function addParameter(XMLRPCParameter $param)
-	{
-		if (!is_array($this->parameters))
-			$this->parameters = array();
-			
-		$this->parameters[] = $param;
-	}
-
-	public function addInt($value) { $this->addParameter(new XMLRPCIntParameter($value)); }
-	public function addString($value) { $this->addParameter(new XMLRPCStringParameter($value)); }
-	public function addDouble($value) { $this->addParameter(new XMLRPCDoubleParameter($value)); }
-	public function addBoolean($value) { $this->addParameter(new XMLRPCBoolParameter($value)); }
+<?php
+
+/**
+ * @class XMLRPCResponse XML-RPC Response. 
+ * @author Curverider Ltd
+ */
+abstract class XMLRPCResponse
+{
+	/** An array of parameters */
+	protected $parameters = array();
+	
+	/**
+	 * Add a parameter here.
+	 *
+	 * @param XMLRPCParameter $param The parameter.
+	 */
+	public function addParameter(XMLRPCParameter $param)
+	{
+		if (!is_array($this->parameters))
+			$this->parameters = array();
+			
+		$this->parameters[] = $param;
+	}
+
+	public function addInt($value) { $this->addParameter(new XMLRPCIntParameter($value)); }
+	public function addString($value) { $this->addParameter(new XMLRPCStringParameter($value)); }
+	public function addDouble($value) { $this->addParameter(new XMLRPCDoubleParameter($value)); }
+	public function addBoolean($value) { $this->addParameter(new XMLRPCBoolParameter($value)); }
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCStringParameter.php b/engine/classes/XMLRPCStringParameter.php
index bf9097747..96cf23021 100644
--- a/engine/classes/XMLRPCStringParameter.php
+++ b/engine/classes/XMLRPCStringParameter.php
@@ -1,20 +1,20 @@
-<?php
-/**
- * @class XMLRPCStringParameter A string.
- * @author Curverider Ltd
- */
-class XMLRPCStringParameter extends XMLRPCParameter
-{
-	function __construct($value)
-	{
-		parent::__construct();
-		
-		$this->value = $value; 
-	}
-	
-	function __toString() 
-	{
-		$value = htmlentities($this->value);
-		return "<value><string>{$value}</string></value>";
-	}
-}
+<?php
+/**
+ * @class XMLRPCStringParameter A string.
+ * @author Curverider Ltd
+ */
+class XMLRPCStringParameter extends XMLRPCParameter
+{
+	function __construct($value)
+	{
+		parent::__construct();
+		
+		$this->value = $value; 
+	}
+	
+	function __toString() 
+	{
+		$value = htmlentities($this->value);
+		return "<value><string>{$value}</string></value>";
+	}
+}
diff --git a/engine/classes/XMLRPCStructParameter.php b/engine/classes/XMLRPCStructParameter.php
index 326a82804..f847d6958 100644
--- a/engine/classes/XMLRPCStructParameter.php
+++ b/engine/classes/XMLRPCStructParameter.php
@@ -1,49 +1,49 @@
-<?php
-
-/**
- * @class XMLRPCStructParameter A structure containing other XMLRPCParameter objects.
- * @author Curverider Ltd
- */
-class XMLRPCStructParameter extends XMLRPCParameter
-{
-	/**
-	 * Construct a struct.
-	 *
-	 * @param array $parameters Optional associated array of parameters, if not provided then addField must be used.
-	 */
-	function __construct($parameters = NULL)
-	{
-		parent::__construct();
-		
-		if (is_array($parameters))
-		{
-			foreach ($parameters as $k => $v)
-				$this->addField($k, $v);
-		}
-	}
-	
-	/**
-	 * Add a field to the container.
-	 *
-	 * @param string $name The name of the field.
-	 * @param XMLRPCParameter $value The value.
-	 */
-	public function addField($name, XMLRPCParameter $value)
-	{
-		if (!is_array($this->value))
-			$this->value = array();
-			
-		$this->value[$name] = $value;
-	}
-	
-	function __toString() 
-	{
-		$params = "";
-		foreach ($this->value as $k => $v)
-		{
-			$params .= "<member><name>$k</name>$v</member>";
-		}
-		
-		return "<value><struct>$params</struct></value>";
-	}
+<?php
+
+/**
+ * @class XMLRPCStructParameter A structure containing other XMLRPCParameter objects.
+ * @author Curverider Ltd
+ */
+class XMLRPCStructParameter extends XMLRPCParameter
+{
+	/**
+	 * Construct a struct.
+	 *
+	 * @param array $parameters Optional associated array of parameters, if not provided then addField must be used.
+	 */
+	function __construct($parameters = NULL)
+	{
+		parent::__construct();
+		
+		if (is_array($parameters))
+		{
+			foreach ($parameters as $k => $v)
+				$this->addField($k, $v);
+		}
+	}
+	
+	/**
+	 * Add a field to the container.
+	 *
+	 * @param string $name The name of the field.
+	 * @param XMLRPCParameter $value The value.
+	 */
+	public function addField($name, XMLRPCParameter $value)
+	{
+		if (!is_array($this->value))
+			$this->value = array();
+			
+		$this->value[$name] = $value;
+	}
+	
+	function __toString() 
+	{
+		$params = "";
+		foreach ($this->value as $k => $v)
+		{
+			$params .= "<member><name>$k</name>$v</member>";
+		}
+		
+		return "<value><struct>$params</struct></value>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XMLRPCSuccessResponse.php b/engine/classes/XMLRPCSuccessResponse.php
index cffa64439..11448faa7 100644
--- a/engine/classes/XMLRPCSuccessResponse.php
+++ b/engine/classes/XMLRPCSuccessResponse.php
@@ -1,19 +1,19 @@
-<?php
-/**
- * @class XMLRPCSuccessResponse
- * @author Curverider Ltd
- */
-class XMLRPCSuccessResponse extends XMLRPCResponse
-{
-	/**
-	 * Output to XML.
-	 */
-	public function __toString()
-	{
-		$params = "";
-		foreach ($this->parameters as $param)
-			$params .= "<param>$param</param>\n";
-		
-		return "<methodResponse><params>$params</params></methodResponse>";
-	}
+<?php
+/**
+ * @class XMLRPCSuccessResponse
+ * @author Curverider Ltd
+ */
+class XMLRPCSuccessResponse extends XMLRPCResponse
+{
+	/**
+	 * Output to XML.
+	 */
+	public function __toString()
+	{
+		$params = "";
+		foreach ($this->parameters as $param)
+			$params .= "<param>$param</param>\n";
+		
+		return "<methodResponse><params>$params</params></methodResponse>";
+	}
 }
 \ No newline at end of file
diff --git a/engine/classes/XmlElement.php b/engine/classes/XmlElement.php
index 17e3151a8..b44023eb3 100644
--- a/engine/classes/XmlElement.php
+++ b/engine/classes/XmlElement.php
@@ -1,19 +1,19 @@
-<?php
-/**
- * @class XmlElement
- * A class representing an XML element for import.
- */
-class XmlElement 
-{
-	/** The name of the element */
-	public $name;
-	
-	/** The attributes */
-	public $attributes;
-	
-	/** CData */
-	public $content;
-	
-	/** Child elements */
-	public $children;
+<?php
+/**
+ * @class XmlElement
+ * A class representing an XML element for import.
+ */
+class XmlElement 
+{
+	/** The name of the element */
+	public $name;
+	
+	/** The attributes */
+	public $attributes;
+	
+	/** CData */
+	public $content;
+	
+	/** Child elements */
+	public $children;
 };
 \ No newline at end of file