* 'master' of ssh://franck.debian.org/srv/ftp.debian.org/git/dak:
Extend test_poolfiles().
Add a test for PoolFile and Location.
Mark Location.archive_type as obsolete.
Carefully add a backref from PoolFile to Location.
Add an incomplete test for Maintainer.
Make relation Maintainer - DBSource bidirectional.
TimestampTestCase: replace sql string by func.now.
DBSource: drop property srcassociations.