Moderation queue management enhancement

1)

![Damn you, Larry](http://jbrt.org/ddg/ignore_mod_1.png)

2)

![Confirming the kill](http://jbrt.org/ddg/ignore_mod_2.png)

3)

![Larry's posts killed](http://jbrt.org/ddg/ignore_mod_3.png)

4)

![Larry killed](http://jbrt.org/ddg/ignore_mod_4.png)
Should we check to see if they're already ghosted/ignored? In case two admins are working on it at the same time...