Merge pull request #42 from greboid/feedback-site

Remove non existant admin group
Use new sudo-user role.

Remove the old sudoer role in favour of the common one.
Merge pull request #43 from csmith/master

Use new sudo-user role.
Use user role.
Try for some consistent formatting.
Merge pull request #44 from csmith/master

Use user role.
Move SSH key into a file.
Merge pull request #45 from csmith/master

Move SSH key into a file.
Add backuppc user
backuppc-user -> backuppc-client
Merge pull request #46 from ShaneMcC/backuppc

Add backuppc user
Merge pull request #47 from greboid/feedback-site

Don't start using feedback user before it exists.
Use php5-fpm-nginx role