Fix mongo on dev vm

 - Dont try and mount a non existent disk
 - Move relationship requiring the mount before mongo to the mount
   itself so we dont require something that doesnt exist
 - Add a hacky extra parameter to require the logshipper config - need
   to do this because the logshipper stuff is defined in hiera, which
   doesnt let us set relationship information, and we cant setup
   logshipper until the mongo log file exists. Cant setup logshipper on
   the dev vm as there is no logstash instance running.
Merge pull request #614 from alphagov/fix-mongo-on-dev-vm

Fix mongo on dev vm
Remove SSLv3 from nginx

The default enables SSLv3.

https://github.com/jfryman/puppet-nginx/blob/v0.0.9/manifests/resource/vhost.pp#L53-L54

This is no longer a sensible default: SSLv3 is ancient and now has a
published vulnerability in the design.

http://googleonlinesecurity.blogspot.co.uk/2014/10/this-poodle-bites-exploiting-ssl-30.html

By doing this, we prevent people running IE6 on WinXP lower than SP3
from accessing our service. Unfortunately, security concerns mean that
we need to make this change.
Merge pull request #617 from alphagov/feature/disable-sslv3

Remove SSLv3 from nginx
Remove Stuart Compton

Stuart conducted a pentest on the Performance Platform that has now
finished. He no longer needs access.
Merge pull request #618 from alphagov/remove-pentest-user

Remove pentest user