Highscore + allgemeine bugfixes

Change-Id: Icc5caebae04de9392aed962efff5298eb82a7d22
Signed-off-by: Philip Jentscheck <philip.jentscheck@live.de>
Merge branch 'master' of https://github.com/RWojtas/SEWS13.git

Conflicts:
	src/main/GameLogic.java