Register this host on OpenSubmit test machine.

def send_hostinfo(config):
    '''
    Register this host on OpenSubmit test machine.
    '''
    info = all_host_infos()
    logger.debug("Sending host information: " + str(info))
    post_data = [("Config", json.dumps(info)),
                 ("Action", "get_config"),
                 ("UUID", config.get("Server", "uuid")),
                 ("Address", ipaddress()),
                 ("Secret", config.get("Server", "secret"))
                 ]

    send_post(config, "/machines/", post_data)