Added a simple implementation of a go board, with the ability to get the color of an intersection, and to set the komi. The komi is currently stored as f32, which might not be a good idea, but should be enough for the moment
Fixed the tests that failed because of the addition of the komi, and added a test for the komi-getting method
Added an incomplete implementation of a chain
Added a show method, and fixed the play method, which used to index from the top-left instead of the bottom-left, which is the usual way in Go
Added hoshis to the show() method, and some comments for clarity
Added my name as copyright holder
Changed the display of the board to have the same conventions as GnuGo
Split up the tests to be more descriptive
Removed the extra println!() in main
Changed the play() method to output an updated copy of the board instead of mutating in place
Fixed up the Board constructor not to use mutable data
Merge pull request #1 from TisButMe/implement-board

Implement board