diff --git a/docs/en/02_Developer_Guides/03_Forms/06_Tabbed_Forms.md b/docs/en/02_Developer_Guides/03_Forms/06_Tabbed_Forms.md
index f2826de0d..43ddf31e5 100644
--- a/docs/en/02_Developer_Guides/03_Forms/06_Tabbed_Forms.md
+++ b/docs/en/02_Developer_Guides/03_Forms/06_Tabbed_Forms.md
@@ -19,7 +19,7 @@ name, and normally they all exist under the `Root` [api:TabSet].
 display up to two levels of tabs in the interface. If you want to group data further than that, try [api:ToggleField].
 </div>
 
-## Adding a field from a tab.
+## Adding a field to a tab
 
 	:::php
 	$fields->addFieldToTab('Root.Main', new TextField(..));
diff --git a/forms/gridfield/GridFieldAddExistingAutocompleter.php b/forms/gridfield/GridFieldAddExistingAutocompleter.php
index 201c52736..937f5218f 100644
--- a/forms/gridfield/GridFieldAddExistingAutocompleter.php
+++ b/forms/gridfield/GridFieldAddExistingAutocompleter.php
@@ -59,7 +59,7 @@ class GridFieldAddExistingAutocompleter
 	 *  	'Team.Name'
 	 *  )
 	 *
-	 * @var Array
+	 * @var array
 	 */
 	protected $searchFields = array();
 
@@ -69,7 +69,7 @@ class GridFieldAddExistingAutocompleter
 	protected $resultsFormat = '$Title';
 
 	/**
-	 * @var String Text shown on the search field, instructing what to search for.
+	 * @var string Text shown on the search field, instructing what to search for.
 	 */
 	protected $placeholderText;
 
@@ -90,7 +90,7 @@ class GridFieldAddExistingAutocompleter
 	/**
 	 *
 	 * @param GridField $gridField
-	 * @return string - HTML
+	 * @return string[] - HTML
 	 */
 	public function getHTMLFragments($gridField) {
 		$dataClass = $gridField->getList()->dataClass();
@@ -220,17 +220,20 @@ class GridFieldAddExistingAutocompleter
 			->limit($this->getResultsLimit());
 
 		$json = array();
-		$originalSourceFileComments = Config::inst()->get('SSViewer', 'source_file_comments');
+		Config::nest();
 		Config::inst()->update('SSViewer', 'source_file_comments', false);
+		$viewer = SSViewer::fromString($this->resultsFormat);
 		foreach($results as $result) {
-			$json[$result->ID] = html_entity_decode(SSViewer::fromString($this->resultsFormat)->process($result));
+			$json[$result->ID] = html_entity_decode($viewer->process($result));
 		}
-		Config::inst()->update('SSViewer', 'source_file_comments', $originalSourceFileComments);
+		Config::unnest();
 		return Convert::array2json($json);
 	}
 
 	/**
-	 * @param String
+	 * @param string $format
+	 *
+	 * @return $this
 	 */
 	public function setResultsFormat($format) {
 		$this->resultsFormat = $format;
@@ -238,7 +241,7 @@ class GridFieldAddExistingAutocompleter
 	}
 
 	/**
-	 * @return String
+	 * @return string
 	 */
 	public function getResultsFormat() {
 		return $this->resultsFormat;
@@ -252,10 +255,11 @@ class GridFieldAddExistingAutocompleter
 	 */
 	public function setSearchList(SS_List $list) {
 		$this->searchList = $list;
+		return $this;
 	}
 
 	/**
-	 * @param Array
+	 * @param array $fields
 	 */
 	public function setSearchFields($fields) {
 		$this->searchFields = $fields;
@@ -263,7 +267,7 @@ class GridFieldAddExistingAutocompleter
 	}
 
 	/**
-	 * @return Array
+	 * @return array
 	 */
 	public function getSearchFields() {
 		return $this->searchFields;
@@ -274,8 +278,8 @@ class GridFieldAddExistingAutocompleter
 	 * Falls back to {@link DataObject->summaryFields()} if
 	 * no custom search fields are defined.
 	 *
-	 * @param  String the class name
-	 * @return Array|null names of the searchable fields
+	 * @param  string $dataClass the class name
+	 * @return array|null names of the searchable fields
 	 */
 	public function scaffoldSearchFields($dataClass) {
 		$obj = singleton($dataClass);
@@ -311,8 +315,9 @@ class GridFieldAddExistingAutocompleter
 	}
 
 	/**
-	 * @param String The class of the object being searched for
-	 * @return String
+	 * @param string $dataClass The class of the object being searched for
+	 *
+	 * @return string
 	 */
 	public function getPlaceholderText($dataClass) {
 		$searchFields = ($this->getSearchFields())
@@ -344,10 +349,13 @@ class GridFieldAddExistingAutocompleter
 	}
 
 	/**
-	 * @param String
+	 * @param string $text
+	 *
+	 * @return $this
 	 */
 	public function setPlaceholderText($text) {
 		$this->placeholderText = $text;
+		return $this;
 	}
 
 	/**
@@ -361,8 +369,11 @@ class GridFieldAddExistingAutocompleter
 
 	/**
 	 * @param int $limit
+	 *
+	 * @return $this
 	 */
 	public function setResultsLimit($limit) {
 		$this->resultsLimit = $limit;
+		return $this;
 	}
 }
diff --git a/model/ArrayList.php b/model/ArrayList.php
index 24d4db8b0..903b04421 100644
--- a/model/ArrayList.php
+++ b/model/ArrayList.php
@@ -431,6 +431,7 @@ class ArrayList extends ViewableData implements SS_List, SS_Filterable, SS_Sorta
 		// This the main sorting algorithm that supports infinite sorting params
 		$multisortArgs = array();
 		$values = array();
+		$firstRun = true;
 		foreach($columnsToSort as $column => $direction) {
 			// The reason these are added to columns is of the references, otherwise when the foreach
 			// is done, all $values and $direction look the same
@@ -438,7 +439,7 @@ class ArrayList extends ViewableData implements SS_List, SS_Filterable, SS_Sorta
 			$sortDirection[$column] = $direction;
 			// We need to subtract every value into a temporary array for sorting
 			foreach($this->items as $index => $item) {
-				$values[$column][] = $this->extractValue($item, $column);
+				$values[$column][] = strtolower($this->extractValue($item, $column));
 			}
 			// PHP 5.3 requires below arguments to be reference when using array_multisort together
 			// with call_user_func_array
@@ -446,6 +447,10 @@ class ArrayList extends ViewableData implements SS_List, SS_Filterable, SS_Sorta
 			$multisortArgs[] = &$values[$column];
 			// First argument is the direction to be sorted,
 			$multisortArgs[] = &$sortDirection[$column];
+			if ($firstRun) {
+				$multisortArgs[] = defined('SORT_NATURAL') ? SORT_NATURAL : SORT_STRING;
+			}
+			$firstRun = false;
 		}
 
 		$multisortArgs[] = &$originalKeys;
diff --git a/model/HasManyList.php b/model/HasManyList.php
index a9cac0818..afc4979f3 100644
--- a/model/HasManyList.php
+++ b/model/HasManyList.php
@@ -8,6 +8,9 @@
  */
 class HasManyList extends RelationList {
 
+	/**
+	 * @var string
+	 */
 	protected $foreignKey;
 
 	/**
@@ -34,6 +37,10 @@ class HasManyList extends RelationList {
 		return $this->foreignKey;
 	}
 
+	/**
+	 * @param null|int $id
+	 * @return array
+	 */
 	protected function foreignIDFilter($id = null) {
 		if ($id === null) $id = $this->getForeignID();
 
@@ -51,7 +58,7 @@ class HasManyList extends RelationList {
 	 *
 	 * It does so by setting the relationFilters.
 	 *
-	 * @param $item The DataObject to be added, or its ID
+	 * @param DataObject|int $item The DataObject to be added, or its ID
 	 */
 	public function add($item) {
 		if(is_numeric($item)) {
@@ -83,7 +90,7 @@ class HasManyList extends RelationList {
 	 *
 	 * Doesn't actually remove the item, it just clears the foreign key value.
 	 *
-	 * @param $itemID The ID of the item to be removed.
+	 * @param int $itemID The ID of the item to be removed.
 	 */
 	public function removeByID($itemID) {
 		$item = $this->byID($itemID);
@@ -95,7 +102,7 @@ class HasManyList extends RelationList {
 	 * Remove an item from this relation.
 	 * Doesn't actually remove the item, it just clears the foreign key value.
 	 *
-	 * @param $item The DataObject to be removed
+	 * @param DataObject $item The DataObject to be removed
 	 * @todo Maybe we should delete the object instead?
 	 */
 	public function remove($item) {
diff --git a/model/ManyManyList.php b/model/ManyManyList.php
index 54df3b77b..e5b041195 100644
--- a/model/ManyManyList.php
+++ b/model/ManyManyList.php
@@ -47,7 +47,7 @@ class ManyManyList extends RelationList {
 	 * @param string $joinTable The name of the table whose entries define the content of this many_many relation.
 	 * @param string $localKey The key in the join table that maps to the dataClass' PK.
 	 * @param string $foreignKey The key in the join table that maps to joined class' PK.
-	 * @param string $extraFields A map of field => fieldtype of extra fields on the join table.
+	 * @param array $extraFields A map of field => fieldtype of extra fields on the join table.
 	 *
 	 * @example new ManyManyList('Group','Group_Members', 'GroupID', 'MemberID');
 	 */
@@ -151,9 +151,9 @@ class ManyManyList extends RelationList {
 	 * Return a filter expression for when getting the contents of the
 	 * relationship for some foreign ID
 	 *
-	 * @param int $id
+	 * @param int|null $id
 	 *
-	 * @return string
+	 * @return array
 	 */
 	protected function foreignIDFilter($id = null) {
 		if ($id === null) {
@@ -176,7 +176,7 @@ class ManyManyList extends RelationList {
 	 * entries. However some subclasses of ManyManyList (Member_GroupSet) modify foreignIDFilter to
 	 * include additional calculated entries, so we need different filters when reading and when writing
 	 *
-	 * @param array|integer $id (optional) An ID or an array of IDs - if not provided, will use the current ids
+	 * @param array|int|null $id (optional) An ID or an array of IDs - if not provided, will use the current ids
 	 * as per getForeignID
 	 * @return array Condition In array(SQL => parameters format)
 	 */
@@ -188,7 +188,10 @@ class ManyManyList extends RelationList {
 	 * Add an item to this many_many relationship
 	 * Does so by adding an entry to the joinTable.
 	 *
-	 * @param mixed $item
+	 * @throws InvalidArgumentException
+	 * @throws Exception
+	 *
+	 * @param DataObject|int $item
 	 * @param array $extraFields A map of additional columns to insert into the joinTable.
 	 * Column names should be ANSI quoted.
 	 */
@@ -349,7 +352,7 @@ class ManyManyList extends RelationList {
 	 */
 	public function getExtraData($componentName, $itemID) {
 		$result = array();
-
+		
 		// Skip if no extrafields or unsaved record
 		if(empty($this->extraFields) || empty($itemID)) {
 			return $result;
diff --git a/model/RelationList.php b/model/RelationList.php
index bd14f98d2..dfd39e19a 100644
--- a/model/RelationList.php
+++ b/model/RelationList.php
@@ -10,6 +10,9 @@
  */
 abstract class RelationList extends DataList {
 
+	/**
+	 * @return string|null
+	 */
 	public function getForeignID() {
 		return $this->dataQuery->getQueryParam('Foreign.ID');
 	}
@@ -19,6 +22,8 @@ abstract class RelationList extends DataList {
 	 * the given foreign ID.
 	 *
 	 * @param int|array $id An ID or an array of IDs.
+	 *
+	 * @return DataList
 	 */
 	public function forForeignID($id) {
 		// Turn a 1-element array into a simple value
@@ -27,7 +32,8 @@ abstract class RelationList extends DataList {
 		// Calculate the new filter
 		$filter = $this->foreignIDFilter($id);
 
-		$list = $this->alterDataQuery(function($query, $list) use ($id, $filter){
+		$list = $this->alterDataQuery(function($query) use ($id, $filter){
+			/** @var DataQuery $query */
 			// Check if there is an existing filter, remove if there is
 			$currentFilter = $query->getQueryParam('Foreign.Filter');
 			if($currentFilter) {
diff --git a/security/Member.php b/security/Member.php
index 8459d076f..88b1cccf7 100644
--- a/security/Member.php
+++ b/security/Member.php
@@ -1413,7 +1413,12 @@ class Member extends DataObject implements TemplateGlobalProvider {
 			));
 
 			$mainFields->removeByName($self->config()->hidden_fields);
+
+			// make sure that the "LastVisited" field exists
+			// it may have been removed using $self->config()->hidden_fields
+			if($mainFields->fieldByName("LastVisited")){
 			$mainFields->makeFieldReadonly('LastVisited');
+			}
 
 			if( ! $self->config()->lock_out_after_incorrect_logins) {
 				$mainFields->removeByName('FailedLoginCount');
diff --git a/tests/model/ArrayListTest.php b/tests/model/ArrayListTest.php
index 8afe5038e..7e2e4630d 100644
--- a/tests/model/ArrayListTest.php
+++ b/tests/model/ArrayListTest.php
@@ -247,63 +247,135 @@ class ArrayListTest extends SapphireTest {
 		$list = new ArrayList(array(
 			array('Name' => 'Steve'),
 			(object) array('Name' => 'Bob'),
-			array('Name' => 'John')
+			array('Name' => 'John'),
+			array('Name' => 'bonny'),
 		));
 
 		// Unquoted name
 		$list1 = $list->sort('Name');
-		$this->assertEquals($list1->toArray(), array(
+		$this->assertEquals(array(
 			(object) array('Name' => 'Bob'),
+			array('Name' => 'bonny'),
 			array('Name' => 'John'),
-			array('Name' => 'Steve')
-		));
+			array('Name' => 'Steve'),
+		), $list1->toArray());
 
 		// Quoted name name
 		$list2 = $list->sort('"Name"');
-		$this->assertEquals($list2->toArray(), array(
+		$this->assertEquals(array(
 			(object) array('Name' => 'Bob'),
+			array('Name' => 'bonny'),
 			array('Name' => 'John'),
-			array('Name' => 'Steve')
-		));
+			array('Name' => 'Steve'),
+		), $list2->toArray());
 
 		// Array (non-associative)
 		$list3 = $list->sort(array('"Name"'));
-		$this->assertEquals($list3->toArray(), array(
+		$this->assertEquals(array(
 			(object) array('Name' => 'Bob'),
+			array('Name' => 'bonny'),
 			array('Name' => 'John'),
-			array('Name' => 'Steve')
-		));
+			array('Name' => 'Steve'),
+		), $list3->toArray());
 
 		// Quoted name name with table
 		$list4 = $list->sort('"Record"."Name"');
-		$this->assertEquals($list4->toArray(), array(
+		$this->assertEquals(array(
 			(object) array('Name' => 'Bob'),
+			array('Name' => 'bonny'),
 			array('Name' => 'John'),
 			array('Name' => 'Steve')
-		));
+		), $list4->toArray());
 
 		// Quoted name name with table (desc)
 		$list5 = $list->sort('"Record"."Name" DESC');
-		$this->assertEquals($list5->toArray(), array(
+		$this->assertEquals(array(
 			array('Name' => 'Steve'),
 			array('Name' => 'John'),
+			array('Name' => 'bonny'),
 			(object) array('Name' => 'Bob')
-		));
+		), $list5->toArray());
 
 		// Table without quotes
 		$list6 = $list->sort('Record.Name');
-		$this->assertEquals($list6->toArray(), array(
+		$this->assertEquals(array(
 			(object) array('Name' => 'Bob'),
+			array('Name' => 'bonny'),
 			array('Name' => 'John'),
 			array('Name' => 'Steve')
-		));
+		), $list6->toArray());
 
 		// Check original list isn't altered
-		$this->assertEquals($list->toArray(), array(
+		$this->assertEquals(array(
 			array('Name' => 'Steve'),
 			(object) array('Name' => 'Bob'),
-			array('Name' => 'John')
+			array('Name' => 'John'),
+			array('Name' => 'bonny'),
+		), $list->toArray());
+	}
+
+	public function testNaturalSort() {
+		//natural sort is only available in 5.4+
+		if (version_compare(phpversion(), '5.4.0', '<')) {
+			$this->markTestSkipped();
+		}
+		$list = new ArrayList(array(
+		array('Name' => 'Steve'),
+			(object) array('Name' => 'Bob'),
+			array('Name' => 'John'),
+			array('Name' => 'bonny'),
+			array('Name' => 'bonny1'),
+			array('Name' => 'bonny10'),
+			array('Name' => 'bonny2'),
 		));
+
+		// Unquoted name
+		$list1 = $list->sort('Name');
+		$this->assertEquals(array(
+            (object) array('Name' => 'Bob'),
+            array('Name' => 'bonny'),
+            array('Name' => 'bonny1'),
+            array('Name' => 'bonny2'),
+            array('Name' => 'bonny10'),
+            array('Name' => 'John'),
+            array('Name' => 'Steve'),
+        ), $list1->toArray());
+
+		// Quoted name name
+		$list2 = $list->sort('"Name"');
+		$this->assertEquals(array(
+            (object) array('Name' => 'Bob'),
+            array('Name' => 'bonny'),
+            array('Name' => 'bonny1'),
+            array('Name' => 'bonny2'),
+            array('Name' => 'bonny10'),
+            array('Name' => 'John'),
+            array('Name' => 'Steve'),
+        ), $list2->toArray());
+
+		// Array (non-associative)
+		$list3 = $list->sort(array('"Name"'));
+		$this->assertEquals(array(
+	        (object) array('Name' => 'Bob'),
+	        array('Name' => 'bonny'),
+	        array('Name' => 'bonny1'),
+	        array('Name' => 'bonny2'),
+	        array('Name' => 'bonny10'),
+	        array('Name' => 'John'),
+	        array('Name' => 'Steve'),
+	    ), $list3->toArray());
+
+		// Check original list isn't altered
+		$this->assertEquals(array(
+            array('Name' => 'Steve'),
+            (object) array('Name' => 'Bob'),
+            array('Name' => 'John'),
+            array('Name' => 'bonny'),
+            array('Name' => 'bonny1'),
+            array('Name' => 'bonny10'),
+            array('Name' => 'bonny2'),
+        ), $list->toArray());
+
 	}
 
 	public function testSortSimpleASCOrder() {