Add live feed

Added live streaming section. Includes:
-adding a new Game model, associating that with tournament model. 
-Also added admin page for Game. 
-Add live stream to ui with chat, only shows up when one is available
-remove 'more' button from header and add 5th game image
I think it makes more sense to have a relationship defined the other way. The api.Game would then reference the Tournament as a OneToOne relationship. That way we will avoid modifications to the Tournament model.