number of mine neighbors they have and change their characters correspondingly.
Spawner class. When you press enter, you're told if the space is clear or is a mine, in which case you lose. Next step is to reveal the numbers.
if the cursor is over the mine. We now have to not end the game until the user SELECTS the space the mine is at. I hadn't realized that is_empty only works if display is True? So I moved the game.end() to the mine class.
Cory