Add a buglist for people in the Firefox group.

Benjamin, please let me know if there's anything you'ld like me to add or change to make this suitable for merging.

Thanks!

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Okay, I think this and the comment above are mostly fixed in e1d76e2.
When a member of the firefox team looks at it, it looks [like it used to](https://www.dropbox.com/s/bg97n4kosp4krvt/Screenshot%202014-08-22%2010.43.13.png).
When anyone else looks at it, it looks like this:
![non-firefox view](https://cloud.githubusercontent.com/assets/159571/4012270/4e114f12-2a0c-11e4-9b39-e2961e302912.png)
(I moved the current status up, because without the bugs, that side of the screen was feeling a little empty…  The preview still appears [below both columns](https://www.dropbox.com/s/2g5l5ntslbtn6fw/Screenshot%202014-08-22%2010.56.42.png).)