Core/Creature: Implement FarTeleportTo (teleport to an other map)

Core/Transport: Cleanup and optimize transport and passenger handling
- Only transports will be active objects
  - Reduced cpu and memory usage
- Using FarTeleportTo for creature passengers at transport teleportation
  - Creatures won't be recreated on teleport

--HG--
branch : trunk

src/server/game/Maps/MapManager.cpp

@@ -53,9 +53,6 @@ MapManager::~MapManager()
         delete *i;
     }
 
-    for (TransportNPCSet::iterator i = m_TransportNPCs.begin(); i != m_TransportNPCs.end(); ++i)
-        delete *i;
-
     Map::DeleteStateMachine();
 }