Merge with Michael

Patches applied:

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-65
   * inital support for "apt-get source -t dist" (but no downgrades yet

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-66
   * full support for apt-get source -t now (and honor pining too)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-67
   * added APT::Authentication::Trust-CDROM option

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-68
   * fix a crash in apt-ftparchive

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-69
   * sparc64 alignment fix

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-70
   * fix segfault when there is no Archive for a VerFile

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-71
   * don't get candidate release as version tag for FindSrc by default. because it break for bin-NMUs :/ (e.g. dpkg source is 1.13.11, but i386 version string is 1.13.11.0.1)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-72
   * corrections in the changelog

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-73
   * init the default ScreenWidth to 79 columns by default (Closes: #324921)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-74
   apt-cdrom.cc:fix some missing gettext() calls (closes: #334539); doc/apt-cache.8.xml: fix typo (closes: #334714)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-75
   * seting section to "admin" to match override file

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-76
   * finalized the changelog

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-77
   * renamed Trust-CDROM to TrustCDROM to make it consistent with ubuntu

 * michael.vogt@ubuntu.com--2005/apt--trust-cdrom--0--base-0
   tag of apt@packages.debian.org/apt--main--0--patch-79

 * michael.vogt@ubuntu.com--2005/apt--trust-cdrom--0--patch-1
   * implemented "TrustCDROM" mode

 * michael.vogt@ubuntu.com--2005/apt--trust-cdrom--0--patch-2
   * added APT::Authentication::TrustCDROM to the configure-index