Demon Stone: hash update, Wine 1.6.2

1.6.2 may be fixing some bugs with GOG installer? (#3735)
Adding Anvil of Dawn (contributed)

http://www.playonlinux.com/en/app-2213-GOGcom__Anvil_of_Dawn.html
Indent POL_GoG_download with spaces
Eschalon Book 1: hash update, Wine 1.6.2

1.6.2 may be fixing some bugs with GOG installer? (#3735)