checkers: bug fixes
checkers: back end works, i think. still needs unit testing
checkers: you can move some pieces around, but the turn logic is not complete for the gui
checkers: can play on gui.
Merge branch 'master' of https://github.com/trec21/trevons-games-1.git
Merge branch 'master' of https://github.com/trec21/trevons-games-1.git
checkers is working to my knowledge. help find bugs if you can =]
Merge branch 'master' of https://github.com/trec21/trevons-games-1.git