Erwan

- fixed a bug with Flagstones of Trokair. There was no easy fix (cloned objects deleting stuff from their parents...) and I ended up using a "garbage collect at end of turn" technique the way I did with the ActionStack. As a result, the memory print of a turn will become bigger, and even more bugs might occur at the end of a turn... I'm ready to discuss this, although I think it's the best solution (in terms of result/amount of work) given the way abilities work right now
- Test suite now gives the number of failed/success at the end of the tests

projects/mtg/include/AllAbilities.h

@@ -215,9 +215,9 @@ public:
   }
 
   ~MultiAbility(){
-    if (!isClone){
+   if (!isClone){
       vector<int>::size_type sz = abilities.size();
-      for (unsigned int i = 0; i < sz; i++){
+      for (size_t i = 0; i < sz; i++){
         delete abilities[i];
       }
     }