title: Bootstrap datepicker format date differently on display than on value
body: <p>I want to use Twitter Bootstrap's datepicker. I want the actual input to DISPLAY in the format mm/dd/yyyy but the value of the object I want it to create/pass should be in yyyy-mm-dd. I am aware of this property:</p>
  
  <pre><code>"data-date-format" =&gt; "mm-dd-yyyy"
  </code></pre>
  
  <p>But that changes both the way the date is displayed and how the value is formatted. I also have this in my JS:</p>
  
  <pre><code>$(this).datepicker({
    format: 'yyyy-mm-dd',
    autoclose: true,
    todayHighlight: true,
    pickTime: false
  });
  </code></pre>
  
  <p>I'm not really sure what the format part is doing, but changing it doesn't change the value that is created by the input.</p>