Merge remote branch 'stew/contents' into merge

Merge remote branch 'stew/contents' into merge

* stew/contents:
  get rid of testing code (hardcoded 'unstable','testing', /home/stew paths, etc)
  get rid of some w h           i t spa              c e; and fix the comment in update28
  fix one trigger, add a bin_associations trigger
  add indexes to make override trigger fast
  triggers now work
  wtf was that
  fix section, get rid of unneeded component
  switch execute to executemany for insert_content_paths
  minor fixes
  before I rip out pending_*
  check for a DAK_CONFIG env variable when looking for dak.conf
  adding grants
  do all binaries, not just the first
  undoing changes I shouldn't have made
  undoing some changes I shouldn't have made
  get rid of stew config hacks

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