title: can't figure out how to do i18n on Devise
body: <p>in my rails3 app, i'm using devise for authentication</p>
  
  <p>now i'm trying to do i18n. for that i saw a <code>devise.en.yml</code> in <code>config/locales</code>, and thought all i got to do is make an <code>devise.ro.yml</code> to translate it in my other language. but if the <code>devise.ro.yml</code> is present, everything is in ro, no matter the language i use</p>
  
  <p>for changing language, i use a locale param in my urls. for that i set up in the application controller something like this:</p>
  
  <pre><code>before_filter :set_locale
  
  def set_locale
    I18n.locale=params[:locale]
  end
  
  def default_url_options(options={})
     { :locale =&gt; I18n.locale }
  end
  </code></pre>
  
  <p>everything in my app is translated ok, except the devise part</p>
  
  <p>am I missing something here?</p>