Use player display names on the creature list instead of email addresses
Cleaned up the facebook authentication workflow

The CaC server now redirects to a special page named fb.html instead of index.html after being authenticated by facebook. fb.html has one job: to parse the access code and player id from the query string, store them, and then redirect to index.html.

The main app can now just always read the logged in player from html5's local storage.