added first logic
Merge branch 'master' of https://github.com/propra13-orga/gruppe53
Merge remote-tracking branch 'origin/olli'

Conflicts:
	Game/src/progprak/gruppe53/Game.java
	Game/src/progprak/gruppe53/GamePanel.java
added comment
KeyBoardInput Class, Collision detection
modified Collisiondetection
new Classes: Enemy
Einfach alles
cleanup