Send changed animation event asynchronously

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -3555,6 +3555,8 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="eventName">The name of the event</param>
         /// <param name="args">The arguments for the event</param>
         public void SendScriptEventToAttachments(string eventName, Object[] args)
+        {
+            Util.FireAndForget(delegate(object x)
             {
                 if (m_scriptEngines.Length == 0)
                     return;
@@ -3576,6 +3578,7 @@ namespace OpenSim.Region.Framework.Scenes
                         }
                     }
                 }
+            });
         }
 
         internal void PushForce(Vector3 impulse)