*CreatureGroups fixed and improoved. By TrullyONE

- Multimap support for instances added.
 - Removed redundant group checks.
 - New movement rules (bool group formed/dismissed added).
 - uint32 Creature::GroupID replaced with CreatureGroup pointer.

--HG--
branch : trunk

src/game/HomeMovementGenerator.cpp

@@ -69,7 +69,8 @@ HomeMovementGenerator<Creature>::Update(Creature &owner, const uint32& time_diff
         // restore orientation of not moving creature at returning to home
         if(owner.GetDefaultMovementType()==IDLE_MOTION_TYPE)
         {
-            owner.SetOrientation(ori);
+            sLog.outDebug("Entering HomeMovement::GetDestination(z,y,z)");
+			owner.SetOrientation(ori);
             WorldPacket packet;
             owner.BuildHeartBeatMsg(&packet);
             owner.SendMessageToSet(&packet, false);