Merge pull request #63 from greboid/nexus

Switch nexus role
Fix lookup for SSH keys not actually working.
Merge pull request #65 from ShaneMcC/fix-ssh-keys

Fix lookup for SSH keys not actually working.
Add updater site.
Merge pull request #66 from greboid/updatersite

Add an updater site.
Fix misnamed folder
Merge pull request #67 from greboid/master

Fix broken role
Checkout update site.
No point having this.
Fine! Don't require an agent forward for no reason.
Merge pull request #68 from greboid/updatersite

Checkout update site.
Fix incorrect updates site root.
Merge pull request #69 from greboid/updatersite

Fix incorrect updates site roo.
Basic redirection role.

Needs lots more redirects added.
Probably needs improving.
Basic redirection role.

Needs lots more redirects added.
Probably needs improving.
Merge pull request #70 from greboid/updatersite

Add basic redirect role
Switch to dmdirc-roles nginx-redirects role.
Merge branch 'master' of https://github.com/DMDirc/Infrastructure into updatersite
Use new generic fallback.
Merge pull request #71 from greboid/updatersite

Use new nginx redirects role