- Fixes compatibility issue with latest version of jQuery which fails to edit/update the playlist.
- Improved the visual layout of admin section.
- Included About page in admin for ease of access to User's Manual.

git-svn-id: https://plugins.svn.wordpress.org/gi-media-library/trunk@816928 b8457f37-d9ea-0310-8a92-e5e31aec5664