remove ngSanitize
Use a splash page
Add AngularFire augmented library (to enable initialization with firebase (see https://github.com/firebase/angularFire/issues/46))
remove unnecessary $timeout
fix game initialization code
Add local game support
Add libraries for local development
refactor into directive with isolate scopes for each subgame
Implement basic ultimate TTT, without special rules yet
refactor main ctrl -- update initialize for online game
refactor using newGame constructor -- fix rematch button
refactor board to use Array instead of Matrix -- easier to manage
Board turn logic skeleton
implement board_turn logic
apply animation for playable boards