title: Rails I18n.load_path add custom files
body: <p>I have a rails 4.0.2 app which uses I18N. The <em>config/application.rb</em> file states that</p>
  
  <blockquote>
    <p>the default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.</p>
  </blockquote>
  
  <p>But when I add <em>app.en.yml</em> and <em>app.fr.yml</em> to the <em>config/locales</em> folder, none of the two files appear in I18n.load_path, unless I add the following line to <em>config/application.rb</em>:</p>
  
  <pre><code>config.i18n.load_path += Dir[Rails.root.join("config", "locales", "app.*.{rb,yml}").to_s]
  </code></pre>
  
  <p>Is there something I'm missing?</p>
  
  <p>Thanks</p>