title: spree.i18n don't change the default locale
body: <p>I'm trying to translate to :pt-BR which translation is all complete by <a href="http://www.localeapp.com/projects/4605" rel="nofollow">http://www.localeapp.com/projects/4605</a> but I'm having the same error on the screenshot. Changes in application.rb <code>config.i18n.default_locale = :'pt-BR'</code> and put the pt-BR.yml file on config/locales. Also tryed to change the file name like suggested to spree_i18n.pt-BR.yml but also don't works.</p>