Index: wp-includes/class-http.php
===================================================================
--- wp-includes/class-http.php	(revision 22724)
+++ wp-includes/class-http.php	(working copy)
@@ -134,7 +134,7 @@
 		unset( $homeURL );
 
 		// If we are streaming to a file but no filename was given drop it in the WP temp dir
-		// and pick it's name using the basename of the $url
+		// and pick its name using the basename of the $url
 		if ( $r['stream']  && empty( $r['filename'] ) )
 			$r['filename'] = get_temp_dir() . basename( $url );
 
@@ -530,7 +530,7 @@
 		if ( !empty($wildcard_regex) )
 			return !preg_match($wildcard_regex, $check['host']);
 		else
-			return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it.
+			return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If it's in the array, then we can't access it.
 
 	}
 
@@ -555,7 +555,7 @@
 		// Start off with the Absolute URL path
 		$path = ! empty( $url_parts['path'] ) ? $url_parts['path'] : '/';
 
-		// If the it's a root-relative path, then great
+		// If it's a root-relative path, then great
 		if ( ! empty( $relative_url_parts['path'] ) && '/' == $relative_url_parts['path'][0] ) {
 			$path = $relative_url_parts['path'];
 
Index: wp-includes/js/tinymce/plugins/wplink/editor_plugin_src.js
===================================================================
--- wp-includes/js/tinymce/plugins/wplink/editor_plugin_src.js	(revision 22724)
+++ wp-includes/js/tinymce/plugins/wplink/editor_plugin_src.js	(working copy)
@@ -2,7 +2,7 @@
 	tinymce.create('tinymce.plugins.wpLink', {
 		/**
 		 * Initializes the plugin, this will be executed after the plugin has been created.
-		 * This call is done before the editor instance has finished it's initialization so use the onInit event
+		 * This call is done before the editor instance has finished its initialization so use the onInit event
 		 * of the editor instance to intercept that event.
 		 *
 		 * @param {tinymce.Editor} ed Editor instance that the plugin is initialized in.
Index: wp-includes/js/tinymce/plugins/wpdialogs/js/popup.js
===================================================================
--- wp-includes/js/tinymce/plugins/wpdialogs/js/popup.js	(revision 22724)
+++ wp-includes/js/tinymce/plugins/wpdialogs/js/popup.js	(working copy)
@@ -155,7 +155,7 @@
 
 	/**
 	 * Stores the current editor selection for later restoration. This can be useful since some browsers
-	 * looses it's selection if a control element is selected/focused inside the dialogs.
+	 * loses its selection if a control element is selected/focused inside the dialogs.
 	 *
 	 * @method storeSelection
 	 */
@@ -165,7 +165,7 @@
 
 	/**
 	 * Restores any stored selection. This can be useful since some browsers
-	 * looses it's selection if a control element is selected/focused inside the dialogs.
+	 * loses its selection if a control element is selected/focused inside the dialogs.
 	 *
 	 * @method restoreSelection
 	 */
Index: wp-includes/js/crop/cropper.css
===================================================================
--- wp-includes/js/crop/cropper.css	(revision 22724)
+++ wp-includes/js/crop/cropper.css	(working copy)
@@ -5,7 +5,7 @@
 	cursor: crosshair;
 }
 
-/* an extra classname is applied for Opera < 9.0 to fix it's lack of opacity support */
+/* an extra classname is applied for Opera < 9.0 to fix its lack of opacity support */
 .imgCrop_wrap.opera8 .imgCrop_overlay,
 .imgCrop_wrap.opera8 .imgCrop_clickArea { 
 	background-color: transparent;
Index: wp-includes/theme.php
===================================================================
--- wp-includes/theme.php	(revision 22724)
+++ wp-includes/theme.php	(working copy)
@@ -631,7 +631,7 @@
  */
 function preview_theme_ob_filter_callback( $matches ) {
 	if ( strpos($matches[4], 'onclick') !== false )
-		$matches[4] = preg_replace('#onclick=([\'"]).*?(?<!\\\)\\1#i', '', $matches[4]); //Strip out any onclicks from rest of <a>. (?<!\\\) means to ignore the '" if its escaped by \  to prevent breaking mid-attribute.
+		$matches[4] = preg_replace('#onclick=([\'"]).*?(?<!\\\)\\1#i', '', $matches[4]); //Strip out any onclicks from rest of <a>. (?<!\\\) means to ignore the '" if it's escaped by \  to prevent breaking mid-attribute.
 	if (
 		( false !== strpos($matches[3], '/wp-admin/') )
 	||
Index: wp-includes/comment.php
===================================================================
--- wp-includes/comment.php	(revision 22724)
+++ wp-includes/comment.php	(working copy)
@@ -1673,7 +1673,7 @@
 	if ( preg_match('#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'content-type' )) )
 		return false;
 
-	// Now do a GET since we're going to look in the html headers (and we're sure its not a binary file)
+	// Now do a GET since we're going to look in the html headers (and we're sure it's not a binary file)
 	$response = wp_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) );
 
 	if ( is_wp_error( $response ) )
Index: wp-includes/ms-blogs.php
===================================================================
--- wp-includes/ms-blogs.php	(revision 22724)
+++ wp-includes/ms-blogs.php	(working copy)
@@ -84,7 +84,7 @@
 }
 
 /**
- * Given a blog's (subdomain or directory) slug, retrieve it's id.
+ * Given a blog's (subdomain or directory) slug, retrieve its id.
  *
  * @since MU
  *
Index: wp-includes/feed-atom-comments.php
===================================================================
--- wp-includes/feed-atom-comments.php	(revision 22724)
+++ wp-includes/feed-atom-comments.php	(working copy)
@@ -75,7 +75,7 @@
 		<thr:in-reply-to ref="<?php the_guid(); ?>" href="<?php the_permalink_rss() ?>" type="<?php bloginfo_rss('html_type'); ?>" />
 <?php else : // This comment is in reply to another comment
 	$parent_comment = get_comment($comment->comment_parent);
-	// The rel attribute below and the id tag above should be GUIDs, but WP doesn't create them for comments (unlike posts). Either way, its more important that they both use the same system
+	// The rel attribute below and the id tag above should be GUIDs, but WP doesn't create them for comments (unlike posts). Either way, it's more important that they both use the same system
 ?>
 		<thr:in-reply-to ref="<?php comment_guid($parent_comment) ?>" href="<?php echo get_comment_link($parent_comment) ?>" type="<?php bloginfo_rss('html_type'); ?>" />
 <?php endif;
Index: wp-includes/query.php
===================================================================
--- wp-includes/query.php	(revision 22724)
+++ wp-includes/query.php	(working copy)
@@ -2079,7 +2079,7 @@
 		if ( $q['day'] )
 			$where .= " AND DAYOFMONTH($wpdb->posts.post_date)='" . $q['day'] . "'";
 
-		// If we've got a post_type AND its not "any" post_type.
+		// If we've got a post_type AND it's not "any" post_type.
 		if ( !empty($q['post_type']) && 'any' != $q['post_type'] ) {
 			foreach ( (array)$q['post_type'] as $_post_type ) {
 				$ptype_obj = get_post_type_object($_post_type);
Index: wp-includes/deprecated.php
===================================================================
--- wp-includes/deprecated.php	(revision 22724)
+++ wp-includes/deprecated.php	(working copy)
@@ -394,7 +394,7 @@
  * @param string $cat_name Optional. The category name to use. If no match is found uses all.
  * @param string $before Optional. The html to output before the link.
  * @param string $after Optional. The html to output after the link.
- * @param string $between Optional. The html to output between the link/image and it's description. Not used if no image or $show_images is true.
+ * @param string $between Optional. The html to output between the link/image and its description. Not used if no image or $show_images is true.
  * @param bool $show_images Optional. Whether to show images (if defined).
  * @param string $orderby Optional. The order to output the links. E.g. 'id', 'name', 'url', 'description' or 'rating'. Or maybe owner.
  *		If you start the name with an underscore the order will be reversed. You can also specify 'rand' as the order which will return links in a
@@ -547,7 +547,7 @@
  * @param string $cat_name The category name to use. If no match is found uses all
  * @param string $before The html to output before the link
  * @param string $after The html to output after the link
- * @param string $between The html to output between the link/image and it's description. Not used if no image or show_images is true
+ * @param string $between The html to output between the link/image and its description. Not used if no image or show_images is true
  * @param bool $show_images Whether to show images (if defined).
  * @param string $orderby the order to output the links. E.g. 'id', 'name', 'url',
  *		'description', or 'rating'. Or maybe owner. If you start the name with an
@@ -575,7 +575,7 @@
  * @param int $category The category to use. If no category supplied uses all
  * @param string $before The html to output before the link
  * @param string $after The html to output after the link
- * @param string $between The html to output between the link/image and it's description. Not used if no image or show_images == true
+ * @param string $between The html to output between the link/image and its description. Not used if no image or show_images == true
  * @param bool $show_images Whether to show images (if defined).
  * @param string $orderby The order to output the links. E.g. 'id', 'name', 'url',
  *		'description', or 'rating'. Or maybe owner. If you start the name with an
Index: wp-includes/rss.php
===================================================================
--- wp-includes/rss.php	(revision 22724)
+++ wp-includes/rss.php	(working copy)
@@ -422,7 +422,7 @@
 	else {
 		// Flow
 		// 1. check cache
-		// 2. if there is a hit, make sure its fresh
+		// 2. if there is a hit, make sure it's fresh
 		// 3. if cached obj fails freshness check, fetch remote
 		// 4. if remote fails, return stale object, or error
 
Index: wp-content/themes/twentyeleven/inc/widgets.php
===================================================================
--- wp-content/themes/twentyeleven/inc/widgets.php	(revision 22724)
+++ wp-content/themes/twentyeleven/inc/widgets.php	(working copy)
@@ -30,7 +30,7 @@
 	 *
 	 * @param array An array of standard parameters for widgets in this theme
 	 * @param array An array of settings for this widget instance
-	 * @return void Echoes it's output
+	 * @return void Echoes its output
 	 **/
 	function widget( $args, $instance ) {
 		$cache = wp_cache_get( 'widget_twentyeleven_ephemera', 'widget' );
Index: wp-admin/includes/plugin.php
===================================================================
--- wp-admin/includes/plugin.php	(revision 22724)
+++ wp-admin/includes/plugin.php	(working copy)
@@ -728,7 +728,7 @@
 
 		$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) );
 		// If plugin is in its own directory, recursively delete the directory.
-		if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that its not the root plugin folder
+		if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that it's not the root plugin folder
 			$deleted = $wp_filesystem->delete($this_plugin_dir, true);
 		else
 			$deleted = $wp_filesystem->delete($plugins_dir . $plugin_file);
Index: wp-admin/includes/file.php
===================================================================
--- wp-admin/includes/file.php	(revision 22724)
+++ wp-admin/includes/file.php	(working copy)
@@ -926,7 +926,7 @@
 		$credentials['connection_type'] = 'ftps';
 	else if ( !empty($_POST['connection_type']) )
 		$credentials['connection_type'] = stripslashes($_POST['connection_type']);
-	else if ( !isset($credentials['connection_type']) ) //All else fails (And its not defaulted to something else saved), Default to FTP
+	else if ( !isset($credentials['connection_type']) ) //All else fails (And it's not defaulted to something else saved), Default to FTP
 		$credentials['connection_type'] = 'ftp';
 
 	if ( ! $error &&
Index: wp-admin/includes/class-wp-filesystem-base.php
===================================================================
--- wp-admin/includes/class-wp-filesystem-base.php	(revision 22724)
+++ wp-admin/includes/class-wp-filesystem-base.php	(working copy)
@@ -203,7 +203,7 @@
 				continue; //We want this to be caught by the next code block.
 
 			//Working from /home/ to /user/ to /wordpress/ see if that file exists within the current folder,
-			// If its found, change into it and follow through looking for it.
+			// If it's found, change into it and follow through looking for it.
 			// If it cant find WordPress down that route, it'll continue onto the next folder level, and see if that matches, and so on.
 			// If it reaches the end, and still cant find it, it'll return false for the entire function.
 			if ( isset($files[ $key ]) ){
Index: wp-admin/includes/class-wp-users-list-table.php
===================================================================
--- wp-admin/includes/class-wp-users-list-table.php	(revision 22724)
+++ wp-admin/includes/class-wp-users-list-table.php	(working copy)
@@ -260,7 +260,7 @@
 			$actions = apply_filters( 'user_row_actions', $actions, $user_object );
 			$edit .= $this->row_actions( $actions );
 
-			// Set up the checkbox ( because the user is editable, otherwise its empty )
+			// Set up the checkbox ( because the user is editable, otherwise it's empty )
 			$checkbox = '<label class="screen-reader-text" for="cb-select-' . $user_object->ID . '">' . sprintf( __( 'Select %s' ), $user_object->user_login ) . '</label>'
 						. "<input type='checkbox' name='users[]' id='user_{$user_object->ID}' class='$role' value='{$user_object->ID}' />";
 
Index: wp-admin/includes/class-wp-list-table.php
===================================================================
--- wp-admin/includes/class-wp-list-table.php	(revision 22724)
+++ wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -72,7 +72,7 @@
 	var $_pagination;
 
 	/**
-	 * Constructor. The child class should call this constructor from it's own constructor
+	 * Constructor. The child class should call this constructor from its own constructor
 	 *
 	 * @param array $args An associative array with information about the current table
 	 * @access protected
Index: wp-admin/includes/class-wp-plugin-install-list-table.php
===================================================================
--- wp-admin/includes/class-wp-plugin-install-list-table.php	(revision 22724)
+++ wp-admin/includes/class-wp-plugin-install-list-table.php	(working copy)
@@ -40,7 +40,7 @@
 		$tabs = apply_filters( 'install_plugins_tabs', $tabs );
 		$nonmenu_tabs = apply_filters( 'install_plugins_nonmenu_tabs', $nonmenu_tabs );
 
-		// If a non-valid menu tab has been selected, And its not a non-menu action.
+		// If a non-valid menu tab has been selected, And it's not a non-menu action.
 		if ( empty( $tab ) || ( !isset( $tabs[ $tab ] ) && !in_array( $tab, (array) $nonmenu_tabs ) ) )
 			$tab = key( $tabs );
 
Index: wp-admin/includes/class-wp-theme-install-list-table.php
===================================================================
--- wp-admin/includes/class-wp-theme-install-list-table.php	(revision 22724)
+++ wp-admin/includes/class-wp-theme-install-list-table.php	(working copy)
@@ -51,7 +51,7 @@
 		$tabs = apply_filters( 'install_themes_tabs', $tabs );
 		$nonmenu_tabs = apply_filters( 'install_themes_nonmenu_tabs', $nonmenu_tabs );
 
-		// If a non-valid menu tab has been selected, And its not a non-menu action.
+		// If a non-valid menu tab has been selected, And it's not a non-menu action.
 		if ( empty( $tab ) || ( ! isset( $tabs[ $tab ] ) && ! in_array( $tab, (array) $nonmenu_tabs ) ) )
 			$tab = key( $tabs );
 
Index: wp-admin/includes/class-wp-upgrader.php
===================================================================
--- wp-admin/includes/class-wp-upgrader.php	(revision 22724)
+++ wp-admin/includes/class-wp-upgrader.php	(working copy)
@@ -194,7 +194,7 @@
 			$source = trailingslashit($source) . trailingslashit($source_files[0]);
 		elseif ( count($source_files) == 0 )
 			return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __( 'The plugin contains no files.' ) ); //There are no files?
-		else //Its only a single file, The upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
+		else //It's only a single file, the upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
 			$source = trailingslashit($source);
 
 		//Hook ability to change the source file location..
@@ -615,11 +615,11 @@
 		$plugins_dir = $wp_filesystem->wp_plugins_dir();
 		$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
 
-		if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If its already vanished.
+		if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If it's already vanished.
 			return $removed;
 
 		// If plugin is in its own directory, recursively delete the directory.
-		if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that its not the root plugin folder
+		if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that it's not the root plugin folder
 			$deleted = $wp_filesystem->delete($this_plugin_dir, true);
 		else
 			$deleted = $wp_filesystem->delete($plugins_dir . $plugin);
@@ -1597,7 +1597,7 @@
 }
 
 /**
- * Upgrade Skin helper for File uploads. This class handles the upload process and passes it as if its a local file to the Upgrade/Installer functions.
+ * Upgrade Skin helper for File uploads. This class handles the upload process and passes it as if it's a local file to the Upgrade/Installer functions.
  *
  * @TODO More Detailed docs, for methods as well.
  *
@@ -1615,7 +1615,7 @@
 		if ( empty($_FILES[$form]['name']) && empty($_GET[$urlholder]) )
 			wp_die(__('Please select a file'));
 
-		//Handle a newly uploaded file, Else assume its already been uploaded
+		//Handle a newly uploaded file, Else assume it's already been uploaded
 		if ( ! empty($_FILES) ) {
 			$overrides = array( 'test_form' => false, 'test_type' => false );
 			$file = wp_handle_upload( $_FILES[$form], $overrides );
Index: wp-admin/includes/class-wp-filesystem-direct.php
===================================================================
--- wp-admin/includes/class-wp-filesystem-direct.php	(revision 22724)
+++ wp-admin/includes/class-wp-filesystem-direct.php	(working copy)
@@ -229,7 +229,7 @@
 		if ( ! $recursive && $this->is_dir($file) )
 			return @rmdir($file);
 
-		//At this point its a folder, and we're in recursive mode
+		//At this point it's a folder, and we're in recursive mode
 		$file = trailingslashit($file);
 		$filelist = $this->dirlist($file, true);