* Fixed some compiler warnings

  * Fixed some compiler warnings
  * Make start-stop-daemon exit(1) when we don't find one of the
    pid's we are trying to kill, in accordance with the man page.
  * When running --configure on an already installed package, just
    say it's installed, and not that it is in an unconfigurable
    state
  * Bah, add all the prefix/datadir... stuff back to the install
    target in debian/rules (po/ doesn't use it)
  * Add function to libdpkg that dpkg can call to make sure it's
    compiled version matches that of the library. If it fails,
    complain loudly, but allow to proceed
  * Make dpkg check for uid 0 requirement, before checking the path
    since not being root, is probably the reason that the PATH is
    borked in the first place
  * Make -p short for --print-avail, and -P short for --purge
  * Fix typo in md5sum(1) man page
  * start-stop-daemon: Add --background and --make-pidfile options
  * update-alternatives: make sure we remove "old" symlinks when they
    are no longer pertinent. Add /etc/alternatives/README that refers
    to the update-alternatives(8) man page.
  * dpkg-divert: Add check for being able to write to the old/new
    destination before doing a rename. We fail on this, without
    changing the diversion registry
  * Fix bad regex in update-rc.d