initial commit'
Creating individual classes and tests
Refactored board to use hash instead of array.

Added name method to Cell.
Removed tick method from Board.
Added tests to Cell and Board.
Implemented basic functions for game.

The cell just holds state information about the cell. The cell can also
return a list of who its neighbor cells are.
The board has a map of the currently alive cells.
The board uses a future map to evaluate which cells survive and which
dead cells come alive.
Since the board uses a map instead of an array it can grow and move as
needed.
Merge branch 'master' of github.com:gnarl/gameOfLife
Updated README