Added a JBox2D  to the utils package (creating bodys for now)

Added another subclass for AdventureEntity - ActiveEntity.

Activeentity holds a controller - allowing different mobs to have the same controller.

Created some default entity controllers (null doesn't do anything, mindless zombie and player)

REALLY cleaned up the entity creation system. Normally only needs the constructer,

Added a Damage Queue system, haven't implemented and tests yet for it.

Added a abstract Attack class to generate other entities (fireballs, arrows, etc) and or add Damage items to the queue.