Make the image editor less jumpy when opening.

Props eddiemoya, ericlewis.
Fixes #22793.


Built from https://develop.svn.wordpress.org/trunk@28639


git-svn-id: http://core.svn.wordpress.org/trunk@28457 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/image-edit.js

@@ -316,8 +316,8 @@ var imageEdit = window.imageEdit = {
 		};
 
 		elem.load(ajaxurl, data, function() {
-			elem.fadeIn('fast');
 			head.fadeOut('fast', function(){
+				elem.fadeIn('fast');
 				btn.removeAttr('disabled');
 				spin.hide();
 			});