Pull request

I made a few changes to the project:

1. added the red_player_name and blue_player_name columns to the Game model
2. got rid of the edit/update paths
3. updated the root url to display the games index
4. updated the controller tests so they don't expect special statuses when redirecting from CREATE and DESTROY... the special statuses cause the browser to pause on that page and offer a redirect link instead of redirecting directly to the page