Add a position parameter to region crossing of objects. This avoids the

potential bad update that places an object at the opposite side of the
origin sim for a moment before actually crossing it. Especially important in
grids like OSG where lag between sims is high.

OpenSim/Services/Interfaces/ISimulationService.cs

@@ -98,7 +98,7 @@ namespace OpenSim.Services.Interfaces
         /// <param name="sog"></param>
         /// <param name="isLocalCall"></param>
         /// <returns></returns>
-        bool CreateObject(GridRegion destination, ISceneObject sog, bool isLocalCall);
+        bool CreateObject(GridRegion destination, Vector3 newPosition, ISceneObject sog, bool isLocalCall);
 
         /// <summary>
         /// Create an object from the user's inventory in the destination region.