title: i18n and Date::ABBR_DAYNAMES
body: <p>hi i want translate the names in Date::ABBR_DAYNAMES in ita
  and so i've put in locales/it.yml this:</p>
  
  <pre><code> date:
  formats:
    default: "%d-%m-%Y"
    short: "%d %b"
    long: "%d %B %Y"
  
  day_names: [Domenica, Lunedì, Martedì, Mercoledì, Giovedì, Venerdì, Sabato]
  abbr_day_names: [Dom, Lun, Mar, Mer, Gio, Ven, Sab]
  </code></pre>
  
  <p>in my view i try to translate a day but doesn't work:</p>
  
  <pre><code>&lt;%=t Date::ABBR_DAYNAMES %&gt; 
  </code></pre>
  
  <p>How can i do?</p>
  
  <p>Thanks</p>