[Idea] Score penalty on Klondike when Mix Card is used

[4fff618]

When you recycle the cards on a moment when you cannot make new moves, the mix function should have some penalty for using it. I think than something like making the "score = score / 2" or similar for every time you use it. So it's not free for abuse.

[TobiasBielefeld]

good idea, I will add it :)