Removed OthelloController
Replaced the old OthelloAI stuff with the new MoveStrategy stuff
Implemented a few move strategies & unit tests for them.
Implemented a third movestrategy + some minor refactoring
Implemented the Observable stuff, and wrote some unit tests for Score to
verify this.
Added unit test for NodeImpl, and some more tests on the observable
stuff in general.
BoardImpl and Stringifier are no longer hard-coded to a rectangular
shape
Cleaned up unneccessary code
Implemented unit tests for the other board types (plus fixed a few bugs)
Refactoring, removed some hard-coded black/white players, and fixed some
minor bugs.
Minor refactoring. Also added OthelloApplication.