Media Library: Add a label for attachment type select in list mode.

props afercia.
fixes #31795.
Built from https://develop.svn.wordpress.org/trunk@31942


git-svn-id: http://core.svn.wordpress.org/trunk@31921 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-media-list-table.php

@@ -168,7 +168,8 @@ class WP_Media_List_Table extends WP_List_Table {
 	<div class="filter-items">
 		<?php $this->view_switcher( $mode ); ?>
 
-		<select class="attachment-filters" name="attachment-filter">
+		<label for="attachment-filter" class="screen-reader-text"><?php _e( 'Filter by type' ); ?></label>
+		<select class="attachment-filters" name="attachment-filter" id="attachment-filter">
 			<?php
 			if ( ! empty( $views ) ) {
 				foreach ( $views as $class => $view ) {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta3-31941';
+$wp_version = '4.2-beta3-31942';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.