Removes all geodata stored in database.
            Useful for development, never use on production.

def clear_database(self):
        """ Removes all geodata stored in database.
            Useful for development, never use on production.
        """
        self.logger.info('Removing obsolete geoip from database...')
        IpRange.objects.all().delete()
        City.objects.all().delete()
        Region.objects.all().delete()
        Country.objects.all().delete()