added basic card draw replacement,

auto=replacedraw choice damage:2

auto=replacedraw choice draw:2 noreplace

notice noreplace exempts the draw from sending a draw event. draw events and drawn events are seperate events.

added dredge and it's rules.

[card]
name=Dakmor Salvage
auto=tap
auto={t}:add{b}
dredge=dredge(2)
text=Dakmor Salvage enters the battlefield tapped. -- {T}: Add {B} to your mana pool. -- Dredge 2 (If you would draw a card, instead you may put exactly two cards from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)
type=Land
[/card]

projects/mtg/include/ReplacementEffects.h

@@ -49,12 +49,22 @@ public:
     WEvent * replace(WEvent *e);
     ~RECountersPrevention();
 };
-
-class ReplacementEffects
+class REDrawReplacement: public ReplacementEffect
 {
 protected:
-    list<ReplacementEffect *> modifiers;
+    MTGAbility * source;
+
 public:
+    Player * DrawerOfCard;
+    MTGAbility * replacementAbility;
+    REDrawReplacement(MTGAbility * _source, Player * Drawer = NULL, MTGAbility * replaceWith = NULL);
+    WEvent * replace(WEvent *e);
+    ~REDrawReplacement();
+};
+class ReplacementEffects
+{
+public:
+    list<ReplacementEffect *> modifiers;
     ReplacementEffects();
     WEvent * replace(WEvent *e);
     int add(ReplacementEffect * re);