Hi
As promised, I have documented the generic release steps on this wiki page: http://wiki.x2go.org/doku.php/wiki:development:release-howto
Also, this howto is accessible via http://wiki.x2go.org/doku.php/wiki:development:start
There's probably still room for improvement and I will add more documentation related to Jenkins and Launchpad when I'm more clear on these matters.
Mihai