in-app flag on app rev queue (bug 930707)

- Add a little green plus via ```:after``` to indicate in-app (text-shadow for visibility).

![screen shot 2013-11-08 at 9 38 07 am](https://f.cloud.github.com/assets/674727/1503046/a5574e6a-48a4-11e3-8353-dc870db8c510.png)