Docs: Add a summary, version, and `@access` tag to the property DocBlock for `Custom_Image_Header->updated`.

See [14907] for where the property was initially introduced.
See [30187] for where the property was actually declared.

Props brentvr.
See #30224. See #32246.

Built from https://develop.svn.wordpress.org/trunk@34491


git-svn-id: http://core.svn.wordpress.org/trunk@34455 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/custom-header.php

@@ -41,6 +41,10 @@ class Custom_Image_Header {
 	public $default_headers = array();
 
 	/**
+	 * Used to trigger a success message when settings updated and set to true.
+ 	 *
+	 * @since 3.0.0
+	 * @access private
 	 * @var bool
 	 */
 	private $updated;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34490';
+$wp_version = '4.4-alpha-34491';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.