Docs: Add a missing DocBlock for the `WP_Widget_Factory::$widgets` property.

Props raimy.
See #36299.

Built from https://develop.svn.wordpress.org/trunk@37061


git-svn-id: http://core.svn.wordpress.org/trunk@37028 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-widget-factory.php

@@ -14,6 +14,14 @@
  * @since 4.4.0 Moved to its own file from wp-includes/widgets.php
  */
 class WP_Widget_Factory {
+
+	/**
+	 * Widgets array.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 * @var array
+	 */
 	public $widgets = array();
 
 	/**

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta4-37060';
+$wp_version = '4.5-beta4-37061';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.