Bump 6.3 branch

git-svn-id: https://plugins.svn.wordpress.org/theme-my-login/branches/6.3@939360 b8457f37-d9ea-0310-8a92-e5e31aec5664
Revert version bump. Just realized I never tagged the release earlier today.

git-svn-id: https://plugins.svn.wordpress.org/theme-my-login/branches/6.3@939362 b8457f37-d9ea-0310-8a92-e5e31aec5664