title: Bootstrap datetimepicker current date and current time by default
body: <p>My Bootstrap 3 Datetimepicker is configured as:</p>
  <pre><code> $(function () {
      $('#datetimepicker').datetimepicker({
          minDate: moment(),
          keepInvalid: $('#start_date').val() ? true : false,
          sideBySide: true
          });
  });
  </code></pre>
  <p>What I really need is to show the current date and time (like <code>moment()</code> function does) <strong>only</strong> if the value of the input form is empty (i.e. the appropriate field in the database is empty). And do not show the current date&amp;time if the value is set.</p>
  <p>In the current configuration it always shows me the current date &amp; time ignoring the value from the database. Any ideas?</p>