contact system rewritten
ground-check für richtige sounds bei richtigem boden
Merge branch 'master' of github.com:Lusito/GameDevWeek

Conflicts:
	gdx-kitten-rescue/src/main/java/de/hochschuletrier/gdw/ss14/ecs/EntityFactory.java
	gdx-kitten-rescue/src/main/java/de/hochschuletrier/gdw/ss14/ecs/components/CatPropertyComponent.java
	gdx-kitten-rescue/src/main/java/de/hochschuletrier/gdw/ss14/ecs/systems/CatContactSystem.java
rewrote contatct system
Merge branch 'master' of github.com:Lusito/GameDevWeek
minor issue solved