Glances API RESTful implementation.

        Return the JSON representation of the Glances configuration file
        HTTP/200 if OK
        HTTP/404 if others error

def _api_config(self):
        """Glances API RESTful implementation.

        Return the JSON representation of the Glances configuration file
        HTTP/200 if OK
        HTTP/404 if others error
        """
        response.content_type = 'application/json; charset=utf-8'

        try:
            # Get the JSON value of the config' dict
            args_json = json.dumps(self.config.as_dict())
        except Exception as e:
            abort(404, "Cannot get config (%s)" % str(e))
        return args_json