Will delete and recreate specified namespace

        args:
            namespace(str): Namespace to reset
            params(dict): params used to reset the namespace

def reset_namespace(self, namespace=None, params=None):
        """ Will delete and recreate specified namespace

        args:
            namespace(str): Namespace to reset
            params(dict): params used to reset the namespace
        """
        namespace = pick(namespace, self.namespace)
        params = pick(params, self.namespace_params)
        log.warning(" Reseting namespace '%s' at host: %s",
                 namespace,
                 self.url)
        try:
            self.delete_namespace(namespace)
        except KeyError:
            pass
        self.create_namespace(namespace, params)