Changing start value from player to human
Begin working on unit tests
If human has two corners in a diagonal, then AI takes a side move
Updating TicTacToe controller to be more Angular-like and displaying alert message
Returning winner status in data: tie, computer or human.
Better to compare if move is not None since 0 is False. Adding is_tie method
Checking for more special cases such as if human has a side with a corner move