Prevent hotkeys from clicking hidden links -- keeps U and A from both acting...

Prevent hotkeys from clicking hidden links -- keeps U and A from both acting as moderated/approved toggles. Now each one just does its own function.

git-svn-id: https://core.svn.wordpress.org/trunk@10065 1a063a9b-81f0-0310-95a4-ce76da25c4cd