Add nginx latest to dev machine role

- This used to be in pp-deployment
- A side effect was that devs without access to that repo didn't get this configuration
- Seems more sane to have it here... for now.
![](http://25.media.tumblr.com/5cc966c2cbf1550568b6120645d58417/tumblr_mtz4gixGQR1qzcj1mo1_500.jpg)