Currently (geonames-0.2.2) there is no support for using the countryInfo web service. This patch adds two methods to support calling this web service and getting the data.

There are also two associated classes used by this method, and a test case used to test the new method and classes.

I have applied your patch to my fork on GitHub:

http://github.com/elecnix/ruby-geonames/commit/2cb7f185a7375bcff6c785b73df881d530057d4f

Thanks!