reject_changes: use changes file's absolute path for cleanup.
Use changes/dud absolute path when cleaning up.
Add instructions for apache.
Add instructions for dput-ng.
Fix file mixup in README.buildd-setup

Thanks clemux for noticing.
debile-slave: Improve error handling when failing to report back.
add_dud: use full path to dud (get_dud_file())
debile-slave: Apparently python does not garbage collect open file objects, so make sure they get closed.
Add missing import
Do more dynamic prioritization of jobs.

Jobs never attempted are valued above those that has been attempted before (weight 1/prior attempt).
(Build) jobs blocking other jobs are prioritized over those that don't (weight 1/blocked job).
Production suites are valued above low priority suites (currently hardcoded to "staging", "sid", "experimental") (weight 4).
Build jobs are valued above QA jobs (weight 8).
Sqlalchemy sometimes use BOOLEAN and sometimes SMALLINT for Boolean columns, work with both.
Try to speed up debile-web and debile-master a bit
Do not try to remove the firehose when removing a Result, due to uniquify() it might still be in use somewhere else.
xmlrpc: check that files not only exist, but also are readable
contrib/tanglu: Update README.buildd-setup to cover jessie and bartholomea instead of wheezy.

It is still possible to use wheezy, but you are on your own if you do.
contrib/tanglu: Update README.buildd-setup with improved and simplified non-btrfs instructions.

tmp
contrib/tanglu: Update README.buildd-setup to configure sbuild to use the aptitude build dep resolver.
contrib/tanglu: Various minor imporvements to README.buildd-setup
New remote command: add-check. Adds a check to the DB for given group.
debile-slave: Improve some error messages