Fix for the bug #2222. Git source checkout steps support reference repositories
Merge branch 'myfixes' of git://github.com/srinupiits/buildbot
raise a better exception if the Mercurial revision doesn't have the right shape
Try client: properly call ssh when no username was supplied
Merge branch 'master' of git://github.com/refl/buildbot
BuildSlave: add some unit tests for 'attached'
Merge branch 'BuildSlaveAttachedTests' of git://github.com/jaredgrubb/buildbot
Increase the DB lengths for changes.comments and buildset_properties.property_value

The current 1024 char restrictions on these columns occasionally cause issues on a MySQL backend.
Merge branch 'master' into nine
Merge branch 'db_lengths' of git://github.com/andrewjcg/buildbot
Add release notes.  Fixes #2367.
Merge branch 'master' into nine
fix migration 023 on postgres
Merge branch 'master' into nine