Progress can be tracked here: https://github.com/c-po/vyos-1x/tree/t1548-openvpn
## Todo
* [X] make sure OpenVPN no longer runs as user `root` - use `nobody` instead
* [ ] write show commands in new style XML
* [ ] remove `vyatta-openvpn` from `vyos-world`package and `scripts/build-packages`
* [ ] disable `vyatta-openvpn` Jenkins Job and remove it from the package repo