Jeck - Card ID collisions, cache fixes, cache deleted pooling.

* mtgid now defaults to 0.
 * TextScroller will not update when empty.
 * Cache now moves WCachedResources we're finished with to a garbage pool for later use (to reduce memory fragmentation). 
 * Demo still crashes... but I'm thinking that has to do with fragmentation, not a leak?

projects/mtg/src/MTGDeck.cpp

@@ -279,7 +279,7 @@ int MTGAllCards::readConfLine(std::ifstream &file, int set_id){
           char outBuf[4096];
           sprintf(outBuf,"warning, card id collision! : %i - %s\n", newId, tempCard->name.c_str());
           OutputDebugString (outBuf);
-          delete tempCard;
+          SAFE_DELETE(tempCard);
         }else{
           ids.push_back(newId);
           collection[newId] = tempCard;