Examine-cmd support for script/channels. Resolve #2375.

evennia/comms/managers.py

@@ -424,7 +424,7 @@ class ChannelDBManager(TypedObjectManager):
         dbref = self.dbref(ostring)
         if dbref:
             try:
-                return self.get(id=dbref)
+                return [self.get(id=dbref)]
             except self.model.DoesNotExist:
                 pass
         if exact:

evennia/comms/models.py

@@ -413,7 +413,7 @@ class Msg(SharedMemoryModel):
 # ------------------------------------------------------------
 
 
-class TempMsg(object):
+class TempMsg:
     """
     This is a non-persistent object for sending temporary messages that will not be stored.  It
     mimics the "real" Msg object, but doesn't require sender to be given.