Returns the default collector settings

def get_default_config(self):
        """
        Returns the default collector settings
        """
        config = super(ElbCollector, self).get_default_config()
        config.update({
            'path': 'elb',
            'regions': ['us-west-1'],
            'interval': 60,
            'format': '$zone.$elb_name.$metric_name',
        })
        return config