Merge commit 'mhy/master' into merge

* commit 'mhy/master':
  process-new: Fix BCC and X-Katie handling
  Fix various small bugs
  Re-enable BXA notifications
  queue: Fix typo
  Convert process_new to new APIs
  Print a warning if a trainee tries to do something he's not allowed to do
  Documentation fixes

Signed-off-by: Joerg Jaspert <joerg@debian.org>