Merge branch 'bpo' into merge

Merge branch 'bpo' into merge

* bpo: (37 commits)
  Use the debian scriptsdir for the one command we call from there and remove the bpo specific one
  Also set the X-DAK header
  add removalsrss.rc
  Allow override of queued mail address
  Add bpo config
  minimal_apt_conf
  turn off double sig
  Only run a dinstall when unchecked had something to do before
  Run it in daily
  Dont run aptftpcleanup in dinstall
  Add reboot cron
  Add squeeze to apt
  Fixxor address and path
  using a correct path helps
  Add the /etc/ version of our conf to git
  Use right address
  overwrite queueds target to always be the list
  Update the cron scripts
  using relative path does help a lot
  add expire-dumps
  ...

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