PathFinding Nullpointer Fixed!/Camera Shake 
 
- Fixed Pathfinding NullPoint exception, now if the neighbors are null,
it just says that. Still need to fix the following the path part of
pathfinding. 
 FIX: Enemy being stuck when facing right and having to move up. 
- Introducing CameraShake(), it's in the CameraHelper Class and it it's
happy to be alive, call it by pressing Right-Ctrl and S