Started implementation of tests and Board.

Signed-off-by: unknown <saberger@3DLAB2.htwg-konstanz.de>
Merge branch 'master' into simi-quick-finish

Conflicts:
	Memory/src/de/htwg/memory/entities/Board.java
	Memory/src/de/htwg/memory/entities/MemoryCard.java
	Memory/src/de/htwg/memory/logic/Util.java
	Memory/src/de/htwg/memory/main/Main.java
	Memory/test/de/htwg/memory/entities/MemoryCardTest.java