- reworked the testsuite and the rules (storyflow) to use the same game deserialization code, moved that code to the players and zone classes

- removed every references to the gameobserver singleton. This object can now be instantiated several times as it's needed for minmax. To be able to do that, I mostly added a reference to a gameobserver from any targetable object (cards, players, spells) and abilities.

projects/mtg/src/TargetsList.cpp

@@ -20,8 +20,7 @@ int TargetsList::addTarget(Targetable * target)
 {
     if (!alreadyHasTarget(target))
     {
-        GameObserver * state = state->GetInstance();
-        TargetChooser * tc = state->getCurrentTargetChooser();
+        TargetChooser * tc = target->getObserver()->getCurrentTargetChooser();
         if(!tc || (tc && tc->maxtargets == 1))
         {
             //because this was originally coded with targets as an array
@@ -39,7 +38,6 @@ int TargetsList::addTarget(Targetable * target)
         }
     }
     return 0;
-
 }
 
 int TargetsList::alreadyHasTarget(Targetable * target)