CivHero - Daily Challenges and Bird Cards

I've added a "Daily Challenges" feature to the game.  This is a significant update that adds among other things the ability to replay a level (win, lose, whatever).

I dragged my feet on this one for a long time because I was worried about what replaying levels would mean for records, and how it should affect fog of war.  Ultimately, I decided your records are your records and you can treat them how you like.  And yes, levels are certainly easier when you replay them knowing what's where.

In any case, I've had a lot of fun with this new mode, and I'm glad it's in.  One thing it's done for me is help me understand that ALL daily games and probably all emperor games are winnable.  Sometimes it just takes a new approach.

I've also enjoyed collecting the new bird cards, available only through Daily Challenge games.

This update has a bunch of other small changes, too, but those are the key ones!