Add key for mattcottingham
Merge pull request #631 from alphagov/add-mattcottingham

Add key for mattcottingham
Improve puppet logging

 - Log to a file as well as the console. Useful for grepping for errors
   rather than having to scrollback through terminal. File is deleted at
   start so it doesn't grow for ever
 - Add the verbose switch to give some more useful information, but not
   as much information overload as debug mode gives
Merge pull request #633 from alphagov/improve-puppet-logging

Improve puppet logging
Add a disk check to the backup box

We weren't checking whether the data mount on the backup box had
free disk space. We will now have an alert for that.
Merge pull request #634 from alphagov/add-disk-check-backup-box

Add a disk check to the backup box
Update development instructions

These haven't changed with our move of Vagrantfile and were missing installing gems and puppet modules.
Add admin-beta to recommended hosts file
Update GH_REPOS to reflect reality

There was some lingering old repos that are no longer need and it was missing the admin app.
Add hyphens to fix `df` disk checks

These hyphens do not exist, which means that we're requesting collectd
data like:

    dfmnt-data-elasticsearch

This doesn't work, we should instead be looking for:

    df-mnt-data-elasticsearch
Merge pull request #635 from alphagov/fix-disk-check-hyphens

Add hyphens to fix `df` disk checks