buildbot/buildbot — pull request #337 by hborkhuis (2012-03-07 14:05:18+00:00)
Title: Fix sourcestampsetid rebased

Here are 3 of the original 6 commits. The other three commits were related to codebase.
This pull request includes the following changes:
getSourceStampSetid does never return the sourcestampid anymore.
The triggerstep creates a sourcestampset before creating sourcestamp in database.
The triggerstep passes the setid to the triggerable instead of the ssid
The triggerable accepts only a setid.