* The description for `org_by_name` incorrectly directed people to use
  `name_by_addr` rather than `name_by_name`.
* Previously `GeoIP.country_names` was populated from `GeoIP_country_name` in
  the libGeoIP C API. Some versions of the libGeoIP include non-ASCII
  ISO-8859-1 characters in these names, causing encoding errors under Python
  3. When installed under Python 3, this API now uses UTF-8 country names to
  populate this dict. Reported and fixed by Sergey Farbotka. GitHub PR #15.