title: Get week day in portuguese language from date in moment js
body: <p>This is my code </p>
  
  <pre><code>$scope.getWeekDayShort = function(date) {
                  moment().locale('pt-br');
                  return moment(date, "D_M_YYYY").format('ddd');
              }
  </code></pre>
  
  <p>it returns name of weekday in <strong>english</strong> but need <strong>portuguese</strong> weekday name</p>
  
  <p>If I pass <strong>1_1_2015</strong> it returns <strong>Thu</strong></p>
  
  <p>How can I get weekday name in portuguese?</p>
  
  <p><strong>EDIT</strong></p>
  
  <pre><code>moment.locale('pt-br');
  console.log(JSON.stringify(moment.months())) // ["janeiro","fevereiro","março","abril","maio","junho","julho","agosto","setembro","outubro","novembro","dezembro"]
  moment.locale('en');
  console.log(JSON.stringify(moment.months())); // ["January","February","March","April","May","June","July","August","September","October","November","December"]
  </code></pre>
  
  <p>I have included <strong>moment-with-locales.min.js</strong> file which includes all supported language data and it work good with upper code. So why it not works with week name ?</p>