There is some error in BlackJack.py and fixed it.

[RidgeSTD]

Fixed Points

• an ace should be determined to be 1 or 11 only after all cards are investigated
• dealer can also be busted, add an judgement on whether dealer has busted
• there is an error in counting player&dealers wins and looses, which alfter press deal button, counter is added twice
• flag1 has no use, delete it
• deal has an error that at first each person has two cards. That is, count should be init as 2 instead of 0
• add an maximum of 5 on dealer's hand. When dealer has five cards, force dealer to stand