Added LaserGun and RocketLauncher PowerUp.
Merge branch 'master' of https://github.com/danielsuter/tank-wars

Conflicts:
	src/main/java/ch/tankwars/transport/game/GameController.java
del
Merge branch 'master' of https://github.com/danielsuter/tank-wars

Conflicts:
	src/main/java/ch/tankwars/transport/game/GameController.java
Fixed Projectile size.
Merge branch 'master' of https://github.com/danielsuter/tank-wars

Conflicts:
	src/main/java/ch/tankwars/transport/game/GameController.java
Changed rendering of power ups.
Merge branch 'master' of https://github.com/danielsuter/tank-wars