General:
 - Tested the Log; Appears to be a strange error when I work it too fast
InputListener:
 - Added several functionalities:
 	- Check which mouse button is pressed ("isPressed" type methods)
 	- Properly keeping a list of the currently pressed keys for easy
	access
 	- Added getMousePosition; returns a Point
 	- Added a "used" functionality; A currently pressed key can be marked
	as "used" (through a keycode-boolean hashmap) so that it can be made
	sure that it is not registered a second time to be able to prevent
	repeating commands fired by keys when they are unwanted.