Fix display of color icon for menus that don't have submenus. Props duck_. fixes #17881

git-svn-id: http://svn.automattic.com/wordpress/trunk@18340 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/script-loader.php

@@ -488,7 +488,7 @@ function wp_default_styles( &$styles ) {
 	$styles->add_data( 'ie', 'conditional', 'lte IE 7' );
 
 	// all colors stylesheets need to have the same query strings (cache manifest compat)
-	$colors_version = '20110611';
+	$colors_version = '20110624';
 
 	// Register "meta" stylesheet for admin colors. All colors-* style sheets should have the same version string.
 	$styles->add( 'colors', true, array(), $colors_version );