renamed RectangularBoard to BoardImpl and updated API
Fixed comments and tests
Changed parameter order on Assert.assertEquals and return type of getBoard() in OthelloBoardHandler
Merge pull request #17 from wnr/updated-board-implementation

renamed RectangularBoard to BoardImpl and updated API
Fixed compile errors. Now OthelloBoardHandlerFactory takes a BoardImpl instead of a RectangularBoard. The same goes for GreedStrategy.
Merge branch 'master' into score

Conflicts:
	src/kth/game/othello/board/NodeImpl.java