Add experimental --publish option to "save oar" so that OARs reloaded to the same grid don't have the publisher as owner.

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -441,6 +441,12 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public UUID LastOwnerID
+        {
+            get { return m_rootPart.LastOwnerID; }
+            set { m_rootPart.LastOwnerID = value; }
+        }
+
         public UUID OwnerID
         {
             get { return m_rootPart.OwnerID; }