When an asset is uploaded (e.g. a mesh) set individual copy/move/transfer permissions, not PermissionMask.All

Setting PermissionMask.All will cause next permissions to replace current permissions when the object is rezzed, since bit 4 will be set.
This is not correct behaviour for a freshly uploaded mesh.  Freshly rezzed in-world prims also do not have bit 4 set (don't yet know exactly what this is).
Should resolve http://opensimulator.org/mantis/view.php?id=5651

OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs

@@ -265,6 +265,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void ApplyNextOwnerPermissions()
         {
+//            m_log.DebugFormat("[PRIM INVENTORY]: Applying next owner permissions to {0} {1}", Name, UUID);
+
             SceneObjectPart[] parts = m_parts.GetArray();
             for (int i = 0; i < parts.Length; i++)
                 parts[i].ApplyNextOwnerPermissions();