Add minor fixes to tutorial world batch-build script and some better error reporting in the extended_room detail command.

evennia/contrib/extended_room.py

@@ -381,6 +381,9 @@ class CmdExtendedDesc(default_cmds.CmdDesc):
             if not location:
                 caller.msg("No location to detail!")
                 return
+            if not location.db.details:
+                caller.msg("|rThis location does not support details.|n")
+                return
             if self.switches and self.switches[0] in 'del':
                 # removing a detail.
                 if self.lhs in location.db.details:

evennia/contrib/tutorial_world/build.ev

@@ -533,6 +533,7 @@ bridge
 # feature of the BridgeRoom.
 #
 @dig/teleport Protruding ledge;cliffledge;ledge;tut#06
+ : tutorial_world.rooms.WeatherRoom
 #
 @set here/tutorial_info =
  This room is stored as an attribute on the 'Bridge' room and used as