Returns the default collector settings

def get_default_config(self):
        """
        Returns the default collector settings
        """
        config = super(PowerDNSCollector, self).get_default_config()
        config.update({
            'bin': '/usr/bin/pdns_control',
            'path': 'powerdns',
            'use_sudo':         False,
            'sudo_cmd':         '/usr/bin/sudo',
        })
        return config