Cleanup and testing

[kanerogers]

The overall structure of the game is looking much better now, but where I'd like to get to is a fully integrated test suite that covers the following scenarios:

• Starting up and playing a game against the AI
• Playing a full multiplayer game

Can we open the scene up to do this?

It would also be good if we could actually test close to what happens in the real world: the player picks up a piece, and then puts it down. That might be tricky but I think it would be ideal to ensure we're testing all the moving parts.