pi-engine/pi — pull request #72 by sexnothing (2013-05-27 02:19:23+00:00)
Title: operation-->system-->permissions-->admin-->moderator

when we test admin, after you click 'Action' dropdown button, then scroll the content,you will find this bug
![component](https://f.cloud.github.com/assets/3860758/566176/c92a1236-c673-11e2-99d0-99c181187ae7.png)