Import Debian changes 0.7.3-3

Import Debian changes 0.7.3-3

jigdo (0.7.3-3) unstable; urgency=low

  * Brown paper bag bugfix release
  * Non-versioned dependency on libdb-dev rather than libdb4.6-dev.
    Closes: #548482
  * No longer build GUI application and "jigdo" package, since the GUI
    will remain unfinished. :~-| Only build "jigdo-file" package.
    Closes: #515285, #413574, #370384, #516053
  * Updated debian-mirrors.jigdo from current Mirrors.masterlist
  * Workaround for problem with "jigdo-file md5sum" together with
    "--no-check-files". Closes: #418694, #528644
    Quite possibly also Closes: #507993
  * Refer to "GPL-2" rather than "GPL" file in copyright file (lintian)
  * Avoid warning of man about the jigdo-file.1 manpage (lintian)
  * Fixed doc-base section of debian-jigdo-mini-howto (lintian)