Twenty Fourteen: Wait for DOM ready in the customizer, which was breaking IE8.

props ocean90.
fixes #26445.


git-svn-id: https://develop.svn.wordpress.org/trunk@26706 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentyfourteen/js/featured-content-admin.js

@@ -4,5 +4,7 @@
  */
 /* global ajaxurl:true */
 ( function( $ ) {
+	$( document ).ready( function() {
 		$( '#customize-control-featured-content-tag-name input' ).suggest( ajaxurl + '?action=ajax-tag-search&tax=post_tag', { delay: 500, minchars: 2 } );
+	});
 } )( jQuery );