another bindctl traceback on shutdown

[jreed]

This is similar to #588 but different traceback:

# bindctl 
["login success "] login as root
> Boss shutdown
> 
Traceback (most recent call last):
  File "/usr/local/bin/bindctl", line 133, in <module>
    tool.run()
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 122, in run
    self.cmdloop()
  File "/opt/pkg/lib/python3.1/cmd.py", line 138, in cmdloop
    line = self.precmd(line)
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 271, in precmd
    self._update_all_modules_info()
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 265, in _update_all_modules_info
    self.config_data.update_specs_and_config()
  File "/usr/local/lib/python3.1/site-packages/isc/config/ccsession.py", line 365, in update_specs_and_config
    self.request_specifications();
  File "/usr/local/lib/python3.1/site-packages/isc/config/ccsession.py", line 360, in request_specifications
    specs = self._conn.send_GET('/module_spec')
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 232, in send_GET
    status, reply_msg = self._send_message(url, body)
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 224, in _send_message
    self.conn.request('GET', url, body, headers)
  File "/opt/pkg/lib/python3.1/http/client.py", line 918, in request
    self._send_request(method, url, body, headers)
  File "/opt/pkg/lib/python3.1/http/client.py", line 956, in _send_request
    self.endheaders(body)
  File "/opt/pkg/lib/python3.1/http/client.py", line 914, in endheaders
    self._send_output(message_body)
  File "/opt/pkg/lib/python3.1/http/client.py", line 768, in _send_output
    self.send(msg)
  File "/opt/pkg/lib/python3.1/http/client.py", line 716, in send
    self.connect()
  File "/usr/local/lib/python3.1/site-packages/bindctl/bindcmd.py", line 74, in connect
    self.timeout)
  File "/opt/pkg/lib/python3.1/socket.py", line 307, in create_connection
    raise error(msg)
socket.error: [Errno 111] Connection refused

[shane]

So #588 is resolved, can we resolve this one too?