Properly corrected "Strict errors on admin page"

@see https://github.com/shane-tomlinson/browserid-wordpress/commit/a154b4e
Merge pull request #88 from jasondmoss/patch-1

Properly corrected "Strict errors on admin page"

Tested, works great! r+

Thank you so much @jasondmoss!
Fix comments for signed in users.

* Allow signed in users to comment without loading up Persona.
* Allow users to comment from the admin panel.
Update the changelog and readme for v0.49
Merge branch 'master' of github.com:shane-tomlinson/browserid-wordpress