Start the HTTP server thread.

def start(self):
        """
        Start the HTTP server thread.

        """
        logging.info("HTTP server: "
                     "Starting to listen for requests on '%s:%s'..." %
                     (self.conf['addr'], self.conf['port']))

        self.my_server = MyWSGIRefServer(host=self.conf['addr'],
                                         port=self.conf['port'],
                                         romana_http=self)

        self.http_thread = threading.Thread(
                    target = APP.run,
                    name   = "HTTP",
                    kwargs = {"quiet" : True, "server" : self.my_server})

        self.http_thread.daemon = True
        self.http_thread.start()
        time.sleep(1)
        if not self.wsgi_server_started:
            # Set the global flag indicating that everything should stop
            CURRENT_STATE._stop_all = True