*Fix build in linux.

--HG--
branch : trunk

src/game/ObjectGridLoader.cpp

@@ -335,7 +335,7 @@ template<class T>
 void
 ObjectGridCleaner::Visit(GridRefManager<T> &m)
 {
-    for(GridRefManager<T>::iterator iter = m.begin(); iter != m.end(); ++iter)
+    for(typename GridRefManager<T>::iterator iter = m.begin(); iter != m.end(); ++iter)
         iter->getSource()->RemoveFromWorld();
 }