code review by fei.hong: do fixes bugs to special sale huodong

@@ -110,6 +110,7 @@ class Bootstrap extends Bootstrap_Abstract
                 $saleId = strtr($subDomainLow, array('specialsale' => ''));
                 $module = 'Product';
                 $controller = 'Sale';
+                $action = 'Index';
                 $dispatcher->getRequest()->setParam('specialsaleId', $saleId);
             }
         }