mjbellantoni/formtastic-bootstrap — pull request #53 by rafaels (2013-02-15 18:57:26+00:00)
Title: Autoloading CountryInput

Contributing to commit "Merge pull request #23 from nicholashubbard/master", the CountryInput was there, but I was receiving "Formtastic::UnknownInputError - Unable to find input class for country".

So, just autoloading the class CountryInput and it works now.