Reviewed code, added/removed some TODOs

Also renamed RollingBall to RollingBallGame
Merge branch 'master' of
https://github.com/sebastienjean/iutvalence-java-mp-2013-2014-si-p1.git

Conflicts:
	src/fr/iutvalence/java/mp/RollingBall/RollingBall.java