code cleaning: some of Game model improved
added GlobalScopingMethods module and included it in all classes, more improvement of Game model
changed User table's current_game column to current_game_id, added current_game method to User class, added Isaac to database, added game to databae and had yaniv, wright and isaac join it
reworked all games_controller logic to models where appropriate. Viva la skinny controller
added cucumber, factory girl, and rspec to gems, installed rspec and configured it for factory girl
added DatabaseCleaner gem, set up User factory
completed testing for Game. All passes except for one (rspec?) bug