Xengine patch to force a persistence save on script creation. This prevents

duplicate delivery of state_entry if a region is restarted just after
saving the script. Changes script state saves to no longer abort long-
running event handlers. Queues the save instead. Adds shutdown handler
to save script state on irderly shutdown

OpenSim/Region/ScriptEngine/Shared/Instance/ScriptSerializer.cs

@@ -56,9 +56,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
         {
             bool running = instance.Running;
 
-            if (running)
-                instance.Stop(50);
-
             XmlDocument xmldoc = new XmlDocument();
 
             XmlNode xmlnode = xmldoc.CreateNode(XmlNodeType.XmlDeclaration,
@@ -182,9 +179,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
             rootElement.AppendChild(plugins);
 
-            if (running)
-                instance.Start();
-
             return xmldoc.InnerXml;
         }