stable and farm-report status

[Anders Qvist]

There is now a second python project in Xenofarm: python-stable, which
is retrieved from tag release22-maint. Status for these builds can be
found at:

http://www.lysator.liu.se/~sfarmer/xeno/latest-stable.html

There is also a mail summary for these builds to snake-farm-report.
Unfortunately, since the result processor now expects mainlog.txt to
be in log format v2, it believes all builds to be failed, which is why
these mails looks so depressing. The web pages, however, examines the
files packages independently of the database and therefore reports
correct status. This problem is being worked on.

Implementing the new log format will allow us to have hierarchical
result reporting which is necessary in order to add third party
modules to the builds.

Therefore, both working mail and third party module support will show
up as soon as this is implemented. It's on its way, so hang in there.