加了两个 管理权限字段    isAdmin > canOperateShop  

      管理界面下图    如用的话需要 

```db.user.update({},{'$set':{'isAdmin': true,'canOperateShop': true},true,true})```


![nopermission](https://f.cloud.github.com/assets/1854527/78696/6b2da204-618f-11e2-899b-e82214f48a6d.jpg)
![admin](https://f.cloud.github.com/assets/1854527/78698/71bcbccc-618f-11e2-98df-86eaa37468b8.jpg)
![deleteuser](https://f.cloud.github.com/assets/1854527/78699/75e0384c-618f-11e2-8191-512e2ba0f111.jpg)