Add Board table/model. Further refine Game table.
Catch unlikely user.find fail in current_user helper
Improve game creation action.

Create game w/ default board_size and use class
constants to assign 'status' and 'mode' values.
Add nicer styling & table layout for games index
Add process allowing users to join open games.

Create 'join' action on games controller
Create 'pregame_setup' method for Game model
Create 'initial_board' method for Board model
Add user profile page with list of active games
Add almost all board images needed for full game
Greatly improve board/tile display (active game)

Add some useful plumbing methods to game model.
Create model functions to parse board data and
tile subview logic to render board images.
Implement process to play a move during game

Add javascript callback to submit board form.
Add game/board model methods to create fresh
board for current game & save to db.
Add status information to top of active game view

Create model logic to gather game status info.
Add pretty print debug method to board model.
Add nav links (refresh game, to game list, etc)
Update gemfile. also gitignore the misc folder
Add precompiled assets for heroku
Remove require statements, use ActiveSupport::JSON