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 am not sure we are gaining much by using APIView since we already serialize JSON, but let's ignore that until we figure out how we want to proceed with loading channels.