[FIX] website: correct GeoIP Legacy compatibility

Attribute is different for country and continent objects.

addons/website/geoipresolver.py

@@ -50,10 +50,10 @@ class GeoIPResolver(object):
             # Compatibility with Legacy database.
             # Some ips cannot be located to a specific country. Legacy DB used to locate them in
             # continent instead of country. Do the same to not change behavior of existing code.
-            country = r.country if r.country.geoname_id else r.continent
+            country, attr = (r.country, 'iso_code') if r.country.geoname_id else (r.continent, 'code')
             return {
                 'city': r.city.name,
-                'country_code': country.iso_code,
+                'country_code': getattr(country, attr),
                 'country_name': country.name,
                 'region': r.subdivisions[0].iso_code if r.subdivisions else None,
                 'time_zone': r.location.time_zone,