* mandos (AvahiError): Converted to use unicode. All users changed.
(AvahiError.__init__): Take *args and **kwargs and pass on all
arguments to super() call.
(AvahiError.__str__): Removed.
(AvahiError.__unicode__): New.
(entry_group_state_changed): Bug fix: Raise AvahiGroupError with one
argument, not two.
(main): Bug fix: on AvahiError, removed "%s" from log message.