Fix dragging cards from dead/discard to play. (#95)
Fix dragging cards from dead/discard to play. (#95)

The pipeline click handler added to Game.playCard was returning if it
couldn't find the card within the player's hand. This method is also
called when a card is dragged into the play area. By returning early,
cards dragged from the dead and discard piles would disappear instead of
be put into play.
cryogen/throneteki,jeremylarner/ringteki,jeremylarner/ringteki,gryffon/ringteki,cryogen/throneteki,DukeTax/throneteki,jbrz/throneteki,jeremylarner/ringteki,cavnak/throneteki,Antaiseito/throneteki_for_doomtown,Antaiseito/throneteki_for_doomtown,gryffon/ringteki,DukeTax/throneteki,cryogen/gameteki,cryogen/gameteki,jbrz/throneteki,cavnak/throneteki,gryffon/ringteki,samuellinde/throneteki,ystros/throneteki,samuellinde/throneteki