Fixed some spurious bugs.

contrib/tutorial_world/objects.py

@@ -250,7 +250,9 @@ class StateLightSourceOn(Script):
         prematurely, this hook will store the current
         burntime. 
         """
-        # calculate remaining burntime 
+        # calculate remaining burntime, if object is not
+        # already deleted (because it burned out)
+        if self.obj:
             try:
                 time_burnt = time.time() - self.db.script_started
             except TypeError:

src/server/webclient.py

@@ -217,7 +217,7 @@ class WebClientSession(session.Session):
         Disconnect from server
         """                        
         if reason:
-            self.lineSend(self.suid, reason)
+            self.client.lineSend(self.suid, reason)
         self.client.client_disconnect(self.suid)
 
     def data_out(self, string='', data=None):