Added the box2d library jar files to the lib
added getRoomPosition() methods for entities 

this method allows quick acces to an entity's coordinates relative to
the room it is in.
Chain is now attached to hero; link rotation needs work

- code needs to be refactored into chain class
- right now it hangs like a loose appendage
- gravity needs to be altered
- room transitions need to be fixed for the chain
adding rigidbodies to the walls
added a debug draw mode to dungeon
loadRoomRigidBodies() now called from hero
rigidBodies now destroy/created upon room entrance
movement of chain is no longer "floaty"

also made the size of the chain links smaller
added a weak chain whip based on mousePosition
chain room transition is better; ball added
ball & chain whip attack now simulated
upon press and release of Key w. the ball at the end of the chain will be
slung around violently
ChainEnd class added; ball now inflicts damage
Chain refactored into its own class
upper room transitions fixed
chain attack only causes damage when swinging
chainAttackCoolDown implemented
cleared out some commented code
simple explostion drawn after enemy dies
chainEnable() & disable() added to dungeon
also tweaked health variable and cleared more commented code
Merge branch 'feature/chain-physics'
e
Conflicts:
	Adventure/.classpath
	Adventure/bin/computc/Direction.class
	Adventure/bin/computc/Game.class
	Adventure/bin/computc/Menu.class
	Adventure/bin/computc/entities/BigThug.class
	Adventure/bin/computc/entities/Enemy.class
	Adventure/bin/computc/entities/Entity.class
	Adventure/bin/computc/entities/Hero.class
	Adventure/bin/computc/entities/OldMan.class
	Adventure/bin/computc/entities/Thug.class
	Adventure/bin/computc/states/MainGameState.class
	Adventure/bin/computc/worlds/Dungeon.class
	Adventure/bin/computc/worlds/Room.class
	Adventure/bin/computc/worlds/Tile.class
	Adventure/src/computc/entities/Entity.java
	Adventure/src/computc/entities/Hero.java
	Adventure/src/computc/entities/OldMan.java
	Adventure/src/computc/entities/Thug.java
	Adventure/src/computc/states/MainGameState.java
	Adventure/src/computc/worlds/Dungeon.java
	Adventure/src/computc/worlds/Room.java
	Adventure/src/computc/worlds/Tile.java