Set up the controlhost connection

def _init_controlhost(self):
        """Set up the controlhost connection"""
        log.debug("Connecting to JLigier")
        self.client = Client(self.host, self.port)
        self.client._connect()
        log.debug("Subscribing to tags: {0}".format(self.tags))
        for tag in self.tags.split(','):
            self.client.subscribe(tag.strip(), mode=self.subscription_mode)
        log.debug("Controlhost initialisation done.")