2.5.1


git-svn-id: https://plugins.svn.wordpress.org/jetpack/tags/2.5.1@890450 b8457f37-d9ea-0310-8a92-e5e31aec5664
`get_userdata()` isn't always defined.


git-svn-id: https://plugins.svn.wordpress.org/jetpack/branches/2.5@890496 b8457f37-d9ea-0310-8a92-e5e31aec5664