Show warning when socket close fails. Fixes #17

            try:

                self._socket.shutdown(socket.SHUT_RDWR)

                self._socket.close()

            except: pass # if socket wasnt connected, keep going

            except Exception as e:

                 LOG.warning('Socket faulted on shutdown/close for {}.'.format(e))

        self._buff = ''

        self._socket = None

        self.connection_id = None