Merge pull request #96 from greboid/master

Add some test vars
Merge pull request #97 from greboid/master

Use the new test vars.
Merge pull request #98 from greboid/master

Move vars around a bit.
Add PMD fetching cron job.

Can amend it at some point to fetch other reports, should probably
move it out of each role and generalise it.

Fix bug in nightlies script.