test on 3.9

git-svn-id: https://plugins.svn.wordpress.org/jetpack-gravatar-hovercards/trunk@896183 b8457f37-d9ea-0310-8a92-e5e31aec5664
remove old versions

git-svn-id: https://plugins.svn.wordpress.org/jetpack-gravatar-hovercards/trunk@896185 b8457f37-d9ea-0310-8a92-e5e31aec5664