Fixed error in Greedy test
Added Lowest move strategy which will move to the node that yields the lowest number of swaps
Changed name of GreedyStrategy to just Greedy
Fixed the name of Lowest move strategy
Added random move strategy
Formatted code
Merge branch 'master' into movestrategies
Changed move strategies to have the name 'Strategy'
Added copyWithoutObservers to both NodeImpl and BoardImpl
Updated all move strategies so they now copies the board that Othello gives in the move method
Reformated code