add Vrachno's Juan Hat stuff for valley
add vrachno to credits
Dealer says "Let's Play Poker"

Made dialog box and sound and added code so that the dealer in the
tavern says "Let's play poker" after you enter.
Dealer only talks once
Merge pull request #2255 from niamu/letsPlayPoker

Dealer says 'Let's play poker'
Merge pull request #2252 from edisonout/juans_hat

Juans hat