Removed mtmaps OpenMP

Implement mtmaps based on ACE
For stable work MapUpdate.Threads=2 in config

--HG--
branch : trunk

src/game/ObjectAccessor.cpp

@@ -162,6 +162,7 @@ Player*
 ObjectAccessor::FindPlayerByName(const char *name)
 {
     //TODO: Player Guard
+    Guard guard(*HashMapHolder<Player>::GetLock());
     HashMapHolder<Player>::MapType& m = HashMapHolder<Player>::GetContainer();
     HashMapHolder<Player>::MapType::iterator iter = m.begin();
     for (; iter != m.end(); ++iter)