removed BackGround in favour of a tile-based Map
removed BackGround in favour of a tile-based Map

fniephaus/babelsberg-js,psieg/babelsberg-js,babelsberg/babelsberg-js,psieg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,psieg/babelsberg-js,psieg/babelsberg-js,babelsberg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,fniephaus/babelsberg-js