Prepare for Github

git-svn-id: https://plugins.svn.wordpress.org/better-avatars/trunk@960658 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tested up to 3.9.1

git-svn-id: https://plugins.svn.wordpress.org/better-avatars/trunk@960660 b8457f37-d9ea-0310-8a92-e5e31aec5664