Moved Player into GameWorld
Added missing call to createHill.
Added distance function, use instead of
shortestDifferenceOnTorus(..).length()
Check attack range.
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/de/wota/gameobjects/GameWorld.java
	src/de/wota/gameobjects/GameWorldParameters.java
	src/de/wota/gameobjects/HillObject.java