Ditched Django and added test mode
Moved datastore from db to ndb
Removed GamePlayer in favor of a list in Game
  - Added a caching layer that drastically reduces the number of DB queries.
  - Added support for running multiple ladders or tournaments from one website.
If players decline or fail to join a game, the system now counts it as a loss for them
Added authentication so players can join or remove themselves from the ladder securely