1、后台的一些bug修复

2、内核更新
3、后台的扩展模型做了一点更新一点，还不够完善

application/common/validate/Document.php

@@ -0,0 +1,29 @@
+<?php
+// +----------------------------------------------------------------------
+// | SentCMS [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2013 http://www.tensent.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Author: molong <molong@tensent.cn> <http://www.tensent.cn>
+// +----------------------------------------------------------------------
+
+namespace app\common\validate;
+
+/**
+* 设置模型
+*/
+class Document extends Base{
+
+	protected $rule = array(
+		'title'   => 'require',
+	);
+	
+	protected $message = array(
+		'title.require'   => '字段标题不能为空！',
+	);
+	
+	protected $scene = array(
+		'add'   => 'title',
+		'edit'   => 'title'
+	);
+}