Use the railties dependencies instead of Rails dependencies. Avoid to…

… have too much dependence useless, like ActiveRecord if you not use it.

i18n-country-translations.gemspec

@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.platform     = Gem::Platform::RUBY
 
   s.add_dependency('i18n', '~> 0.5')
-  s.add_dependency "rails", ">= 3.0.0"
+  s.add_dependency "railties", ">= 3.0.0"
   s.add_development_dependency "rspec-rails", ">= 2.7.0"
   s.add_development_dependency "i18n-spec", ">= 0.1.1"
   s.add_development_dependency "spork", "~> 1.0rc"