added miracle ability.

i choose to use other cost instead of creating a brand new cost type.

otherrestriction determines if the card is the miracle for the turn.

[card]
name=Devastation Tide
auto=all(*[-land]) moveto(ownerhand)
other={1}{u} name(Miracle)
otherrestriction=miracle
text=Return all nonland permanents to their owners' hands. -- Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
mana={3}{U}{U}
type=Sorcery
[/card]

projects/mtg/include/MTGCardInstance.h

@@ -88,6 +88,7 @@ public:
     bool graveEffects;
     bool exileEffects;
     bool suspended;
+    bool miracle;
     int chooseacolor;
     string chooseasubtype;
     int coinSide;//1 = tails

projects/mtg/include/MTGGameZones.h

@@ -131,6 +131,7 @@ class MTGGameZone {
 
 class MTGLibrary: public MTGGameZone {
 public:
+    bool miracle;//we already consider a card a miracle drawn from here.
     vector<MTGCardInstance*>placeOnTop;
     virtual ostream& toString(ostream&) const;
     const char * getName(){return "library";}