Merge remote-tracking branch 'ansgar/pu/multiarchive-1' into merge

* ansgar/pu/multiarchive-1:
  Drop column origin_server from archive table.
  Reference archive table from suite and add path to archive root
  typo: "pakcages" → "packages"
  Also import re_bin_only_nmu from daklib.regexes
  don't require all binaries to be included
  use discard instead of remove
  Add module to process policy queue uploads.
  Add module with pre-acceptance tests.
  Add module to handle archive manipulation.
  Add module to handle uploads not yet installed to the archive.
  process-unchecked.new: drop __SUMMARY__ for now
  remove two template variables
  utils.py: add call_editor function
  utils (send_message): add option to write mail to files
  utils.py (mail_addresses_for_upload): only try to use address from key if there is one

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