Nu er der randomly træer, køer og fly i spillet.  Tilføjet fløjten og
offset til TrainDepot
Merge branch 'develop' of https://github.com/figa12/sw606f13 into
develop

Conflicts:
	source/Train/res/layout-xlarge/activity_game.xml
	source/Train/src/dk/aau/cs/giraf/train/opengl/game/GameData.java
	source/Train/src/dk/aau/cs/giraf/train/opengl/game/Middleground.java

Conflicts er fikset
Merge branch 'develop' of https://github.com/figa12/sw606f13 into develop