added an ability keyword that resolves to do nothing.

"donothing"
this is to avoid using powerandtoughness 0/0 ability to mean "do nothing"

old code
[card]
name=Inquisition
target=player
auto=target(*|targetedpersonshand) 0/0
auto=foreach(*[white]|targetedpersonshand) damage:1 targetedplayer
text=Target player reveals his or her hand. Inquisition deals damage to that player equal to the number of white cards in his or her hand.
mana={2}{B}
type=Sorcery
[/card]

new code
[card]
name=Inquisition
target=player
auto=target(*|targetedpersonshand) donothing
auto=foreach(*[white]|targetedpersonshand) damage:1 targetedplayer
text=Target player reveals his or her hand. Inquisition deals damage to that player equal to the number of white cards in his or her hand.
mana={2}{B}
type=Sorcery
[/card]

projects/mtg/src/AllAbilities.cpp

@@ -1176,6 +1176,26 @@ AAResetDamage * AAResetDamage::clone() const
     return NEW AAResetDamage(*this);
 }
 
+//ability that resolves to do nothing.
+ AAFakeAbility::AAFakeAbility(GameObserver* observer, int id, MTGCardInstance * source, MTGCardInstance * _target, ManaCost * cost):
+    ActivatedAbility(observer, id, source, cost, 0)
+{
+    this->target = _target;
+}
+int AAFakeAbility::resolve()
+{
+    return 1;
+}
+
+const char* AAFakeAbility::getMenuText()
+{
+    return "Ability";
+}
+
+AAFakeAbility * AAFakeAbility::clone() const
+{
+    return NEW AAFakeAbility(*this);
+}
 
 // Fizzler
 AAFizzler::AAFizzler(GameObserver* observer, int _id, MTGCardInstance * card, Spell * _target, ManaCost * _cost) :