[11Oct13 GCS] Added ceiling to board.  Made explosives textured.  Resolved problem cleaning up particles after playing a hand.  Renamed methods on Block and Explosive to be less confusing.  Consolited statements into Block.removeBlock() method to eliminate redundancy.  Tweaked physics by changing explosive projectile mass and increasing physics accuracy.  Did some general cleaning up.
Merge branch 'master' of https://github.com/cmsc495teamawesome/BlockZ
[11Oct13 GCS] Added ceiling to board.  Made explosives textured.  Resolved problem cleaning up particles after playing a hand.  Renamed methods on Block and Explosive to be less confusing.  Consolited statements into Block.removeBlock() method to eliminate redundancy.  Tweaked physics by changing explosive projectile mass and increasing physics accuracy.  Did some general cleaning up.