!170 修复语言包无法加载问题

Merge pull request !170 from Ackleys/master

@@ -229,6 +229,7 @@ class Backend extends Controller
      */
     protected function loadlang($name)
     {
+        $name =  Loader::parseName($name);
         Lang::load(APP_PATH . $this->request->module() . '/lang/' . $this->request->langset() . '/' . str_replace('.', '/', $name) . '.php');
     }