Apply (most) debian patches

Apply debian patch 02-encryption
Apply debian patch 03-dvdrom
Apply a modified version of patch 05-help-dialog
Apply debian patch 08-fix-gnu-make-detection
Apply debian patch 10-use-non-size-specific-icon-and-add-keywords-to-desktop-file
Apply debian patch 12-fix-spelling-of-up-to
Apply debian patch 13-fix-missing-language-field-in-po-files
Apply a modified version of debian patch 14-make-builds-reproducible
Apply debian patch 17-fix-all-but-deprecated-api-warnings
Apply a modified version of debian patch 18-update-copyright-in-about-dialog
Apply debian patch 19-show-text-files-with-abs-path
Apply debian patch 22-fix-hurd-i386-ftbfs
Apply debian patch 23-add-bdrom-support
Apply debian patch 25-fix-man-pages
Apply debian patch 27-allow-opening-in-browser-again
Apply debian patch 28-pdftex-reproducibility
Apply debian patch 29-fix-more-typos
Apply debian patch 30-hurd-kfreebsd-ftbfs
Apply debian patch 31-improve-hurd-and-kfreebsd-support
Apply debian patch 33-honour-LDFLAGS
Apply debian patch 34-gcc8-format-security.patch
Apply debian patch 35-archived-homepage
Apply debian patch 36-fix-parallelism

documentation/upstream-site/de/impressum.html

@@ -63,7 +63,7 @@ Carsten Gnörlich (Anschrift wie oben).
 Das Impressum gilt für die Internetpräsenz unter den Domänen<br>
 <a href="http://dvdisaster.com">dvdisaster.com</a>, &nbsp;
 <a href="http://dvdisaster.de">dvdisaster.de</a>, &nbsp;
-<a href="http://dvdisaster.net">dvdisaster.net</a>, &nbsp;
+<a href="https://web.archive.org/web/20180428070843/http://dvdisaster.net">dvdisaster.net</a>, &nbsp;
 <a href="http://dvdisaster.org">dvdisaster.org</a>.
 
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