* Removed all calls to Release(JQuad*).
* Updated flatten(). Prior flatten was buggy beyond belief.
* Done some extensive testing, but if this causes more trouble than it fixes, we'll have to revert. It's too close to release time.
* Moved shop text ("press square for other cards") etc, to ShopItems, so they rendered properly (all in one place, after AA)
* The AA is really more a proof of concept than anything else. To do it properly I'd need a double-resolution copy of shop.jpg.
* The real multicolored card has a greenish tint, and is darker. What do you think of gold.jpg? Should we tint it more that way?
