title: add new column in APYDataGridBundle nor work
body: <p>I try add new column to APYDataGridBundle </p>
  
  <p>here is code : </p>
  
  <pre><code>$source-&gt;manipulateRow(
              function ($row)
                  {
                      /**
                       * @var $row Row
                       */
                      $row-&gt;setField('newColumn', $row-&gt;getEntity()-&gt;getMorbidity());
  
                      return $row;
                  }
              );
  </code></pre>
  
  <p>but it dont show on rendered table, how to show it ?</p>
  
  <p>rest of code :</p>
  
  <pre><code> /**
           * @var Grid $grid
           */
          $grid = $this-&gt;get('grid');
  
  
          $grid-&gt;setSource($source);
  
  
          $grid-&gt;hideColumns(array('id','date_create','hidden''number'));
  
          $grid-&gt;hideFilters();
  
          $grid-&gt;setActionsColumnTitle(null);
  
          $grid-&gt;getColumn('value')-&gt;setTitle('price');
  
  
  
  
          $userColumns = array('debtor_name','debtor_type','value', 'sell_price', 'date_sell','date_sell2');
          $grid-&gt;setColumnsOrder($userColumns);
  
  
          $myRowAction = new RowAction('see', 'CompanyController_editCompanyPartner', false, '_self');
          $grid-&gt;addRowAction($myRowAction);
  
  
  
          return $grid-&gt;getGridRes
  </code></pre>
  
  <p>ponse('meaCoreBundle:Base:grid.html.twig');</p>