implement llClearPrimMedia()

untested

OpenSim/Region/Framework/Interfaces/IMoapModule.cs

@@ -53,5 +53,15 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <param name="face"></param>
         /// <param name="me"></param>
         void SetMediaEntry(SceneObjectPart part, int face, MediaEntry me);
+        
+        /// <summary>
+        /// Clear the media entry for a given prim face.
+        /// </summary>
+        /// 
+        /// This is the equivalent of setting a media entry of null
+        /// 
+        /// <param name="part"></param>
+        /// <param name="face">/param>
+        void ClearMediaEntry(SceneObjectPart part, int face);
     }        
 }