* Mark a message from dselect backend as translatable

* Mark a message from dselect backend as translatable
  Thanks to Frédéric Bothamy for the patch
  Closes: #322470
* Simplified Chinese updated. Closes: #473360
* Catalan fixes. Closes: #387141
* Typo fix in Greek translation. Closes: #479122
* French updated.
* Thai updated. Closes: #479313
* Italian updated. Closes: #479326
* Polish updated. Closes: #479342
* Bulgarian updated. Closes: #479379
* Finnish updated. Closes: #479403
* Korean updated. Closes: #479426
* Basque updated. Closes: #479452
* Add missing build-depends back from build-depends-indep field.
  Closes: #478231
* Make cron script quiet if cache is locked. Thanks to Ted Percival
  <ted@midg3t.net> for the patch. Closes: #459344
* Add timeout support for https. Thanks to Andrew Martens
  <andrew.martens@strangeloopnetworks.com> for the patch.
* Add support for --no-download on apt-get update. Closes: #478517

  - Vietnamese updated. Closes: #479008

  - Enable more complete debugging information when Debug::pkgAutoRemove
    is set.
* debian/rules:
  - Add missing Build-Depends-Indep on xsltproc, docbook-xsl, and xmlto.