Finished UI update for Wordpress 4.1

git-svn-id: https://plugins.svn.wordpress.org/media-credit/trunk@1044599 b8457f37-d9ea-0310-8a92-e5e31aec5664
The update merits a new version number

git-svn-id: https://plugins.svn.wordpress.org/media-credit/trunk@1044608 b8457f37-d9ea-0310-8a92-e5e31aec5664