title: Data table sort by date only sorts the day
body: <p>I have a <code>Datatable</code> which is a project list and i want to sort the date column into descending.
  It works but it sorts only the day.</p>
  
  <p>What I want is the last added project to come first.</p>
  
  <p>My script is:</p>
  
  <pre><code>&lt;script&gt;
         $(function(){
                    /* Initialize Bootstrap Datatables Integration */
              App.datatables();
  
              /* Initialize Datatables */
              $('#manage-table').dataTable({
                  "aoColumnDefs": [ { "bSortable": false, "aTargets": [ 0 ] } ],
                  "iDisplayLength": 10,
                  "aLengthMenu": [[10, 20, -1], [10, 20, "All"]],
                  "aaSorting": [[ 3, "desc" ]] //date column
  
              });
  
              /* Add placeholder attribute to the search input */
              $('.dataTables_filter input').attr('placeholder', 'Search'); 
         });
         &lt;/script&gt;  
  </code></pre>