hide widget title to role without permission

Bug: roles without permissions [ admin/structure/rate/1/edit ] can see widget title. wrong!

Added permission checkl and return null where necessary
Patched with 1-hide-widget-title-to-role-without-permission

/**
 * Implements hook_node_view().
 */
function rate_node_view($node, $view_mode, $langcode = '') {
  if ($view_mode != 'rss') {  
    // Adding the form to the node view
    $widgets = rate_get_active_widgets('node', $node->type, $view_mode);
    foreach ($widgets as $widget_id => $widget) {
      $widget_name = 'rate_' . $widget->name;
      _rate_check_widget($widget);
      $display_mode = $view_mode == 'teaser' ? $widget->teaser_display_mode : $widget->node_display_mode;
      $widget_code = array(
        '#weight' => $widget->node_display == RATE_DISPLAY_ABOVE_CONTENT ? -50 : 50,
        '#markup' => rate_generate_widget($widget_id, 'node', $node->nid, $display_mode),
        '#title' => check_plain($widget->title),
        '#type' => 'item',
      );
      
      $permission_status = _rate_check_permissions($widget, $node);
      if ($permission_status == RATE_PERMISSION_DISALLOWED_ROLE )  {
        return null;
      }
      elseif ($widget->node_display == RATE_DISPLAY_DISABLE) {
        $node->$widget_name = $widget_code;
      }
      else {
        $node->content[$widget_name] = $widget_code;
      }
    }
  }
}