Make setting up a Puppetmaster easier.

There is a helpful script we can use that avoids the plumbing
discussion, and neither raring nor F19 can run a Puppet master, so we
should document that to avoid false starts.

Change-Id: I72f8767dc3fc7967207c37911e8e45a6d85c6001
Document hiera setup a bit more comprehensively.

I had to ask, therefore we should record it :).

Change-Id: I321aa77df0037ff52a14e2bee81b147c312d08d6
Fix launch-node for non-official environments.

Infrastructures derived from the OpenStack CI infrastructure currently
need to fork launch-node.py, better if it just takes an option ;).

Change-Id: Iad94451ed2b4da425f059595ae727dcf2847733a
Merge "Make setting up a Puppetmaster easier."
Merge "Document hiera setup a bit more comprehensively."
Merge "Fix launch-node for non-official environments."