Add csrf_token to local admin login, and my uni to superusers

I was trying to log in to the meaningfulconsent admin on staging,
to compare the UserProfile admin to the Participant admin I'm making
on worth2.

I couldn't login with my uni, so I've added it to superusers.

And there was a csrf error when attempting the local login.
Merge pull request #1 from ccnmtl/admin-login-fix

Add csrf_token to local admin login, and my uni to superusers