优化项目目录结构

app/controller/admin/Content.php

@@ -8,12 +8,11 @@
 // +----------------------------------------------------------------------
 
 namespace app\controller\admin;
-use app\controller\Admin;
 
 /**
  * @title 内容管理
  */
-class Content extends Admin {
+class Content extends Base {
 
 	public function _initialize() {
 		parent::_initialize();