Added OnRezScript event to Scene.EventManager.Which the script engine should subscribe to. This is triggered whenever a script is moved into a primitive (and includes the localid of the prim and the script text as params) . Currently though the script item isn't deleted from a users inventory, nor does it actually show up in the objects inventory (this will be fixed soon.) So that means that it isn't currently possible to edit a script (or delete it) once it has been added to a primitive.

OpenSim/Region/Environment/Scenes/SceneObjectPart.cs

@@ -396,6 +396,15 @@ namespace OpenSim.Region.Environment.Scenes
         #endregion
 
         #region Inventory
+        public void AddInventoryItem()
+        {
+
+        }
+
+        public void RemoveInventoryItem()
+        {
+
+        }
         /// <summary>
         /// 
         /// </summary>