title: data-value attribute in emberjs
body: <p>I want to add data-value attribute in input element:</p>
  
  <pre><code>{{input type="text" data-value=ec.ec_id  value=ec.ecl_subject placeholder=ec.ecl_en_subject name="ecl_subject"  class="form-control" }} 
  </code></pre>
  
  <p>But its not visible in browser:</p>
  
  <pre><code>&lt;input id="ember874" class="ember-view ember-text-field form-control" placeholder="Doctor4US: Appointment" type="text" name="ecl_subject"&gt;
  </code></pre>