/* (non-Javadoc)
  * @see org.eclipse.ui.forms.AbstractFormPart#refresh()
  */
 public void refresh() {
   fPluginTable.refresh();
   updateRemoveButtons(true, true);
   super.refresh();
 }
 /* (non-Javadoc)
  * @see org.eclipse.ui.forms.AbstractFormPart#dispose()
  */
 public void dispose() {
   IProductModel model = getModel();
   if (model != null) model.removeModelChangedListener(this);
   super.dispose();
 }