Fix several bugs with the insurance option in Blackjack.

Fix Blackjack rebet action behavior.

Always auto-stand in Blackjack when you have 21.

Fixes a bug that allowed you to sometimes split hands that you shouldn't have been able to split.

Increase the max bet limits based on level when playing Blackjack.

Everyone's cards now show when the dealer auto-wins with a blackjack.

Move a player to 'watching' when getting removed from a Blackjack table by timer.