Update compatibility

git-svn-id: https://plugins.svn.wordpress.org/wpvn-username-changer/trunk@903454 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update compatibility

git-svn-id: https://plugins.svn.wordpress.org/wpvn-username-changer/trunk@903460 b8457f37-d9ea-0310-8a92-e5e31aec5664