Add an initial_data fixture corresponding to current models.
Add MonolithController to data fixture.
Mark currently-running games as "active".

There can only be one active game at a time, and creating a new active
Game will deactivate any older ones.
Style and personal preference.
Automatically uppercase feed codes.
Switch Signup form out for a Register form.

Also move permission decorators to urls file.
Ensure that an active Game exists when registration starts.
Remove the old signup template, replace the old login template.
Ensure that a User can only have one Player per Game.
Admin pages for main and feed subapps.
Create a model-level FeedCodeField.
Fix decorator validation.

Games now use start_date and end_date instead of the active boolean.
Make feedcode case-insensitive at the model level.