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/Base.php

@@ -0,0 +1,32 @@
+<?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 Base extends \think\Validate{
+
+
+	protected function requireIn($value, $rule, $data){
+		if (is_string($rule)) {
+			$rule = explode(',', $rule);
+		}else{
+			return true;
+		}
+		$field = array_shift($rule);
+		$val = $this->getDataValue($data, $field);
+		if (!in_array($val, $rule) && $value == '') {
+			return false;
+		} else {
+			return true;
+		}
+	}
+}