Removed un-used scripts and styles

git-svn-id: https://plugins.svn.wordpress.org/mycred/trunk@768659 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added better support for MP6 Admin styling

git-svn-id: https://plugins.svn.wordpress.org/mycred/trunk@768660 b8457f37-d9ea-0310-8a92-e5e31aec5664