Add nightlies script and cron.
Merge branch 'master' of https://github.com/DMDirc/Infrastructure into updatersite
Merge pull request #80 from greboid/updatersite

Add nightly cron.
Trim old nightlies to specified number of nightlies.

Fixes #81
Add import
Merge pull request #84 from greboid/nightlies

Trim nightlies
Merge branch 'master' of https://github.com/DMDirc/Infrastructure into nightlies

Conflicts:
	ansible/roles/nightliessite/tasks/main.yml