All entities now exist within level
	--No more iterators having iterators
	--Increased efficiency
Changes to be committed:
	modified:   com/reapersrage/entities/Entity.java
	modified:   com/reapersrage/entities/Ghost.java
	modified:   com/reapersrage/entities/GoldPiece.java
	modified:   com/reapersrage/entities/Mob.java
	modified:   com/reapersrage/entities/Player.java
	modified:   com/reapersrage/entities/Projectile.java
	modified:   com/reapersrage/entities/Spike.java
	modified:   com/reapersrage/game/Game.java
	modified:   com/reapersrage/world/level/Level.java
	modified:   com/reapersrage/world/level/RandomLevel.java