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/user-manual/download.tex

@@ -15,7 +15,7 @@ the \href{http://www.gnu.org/licenses/gpl-3.0.txt}{GNU General Public License v3
 
 \bigskip
 
-The dvdisaster developer site (\url{http://dvdisaster.net}) contains
+The dvdisaster developer site (\url{https://web.archive.org/web/20180428070843/http://dvdisaster.net}) contains
 the latest source code releases for the FreeBSD, GNU/Linux and NetBSD
 operating systems. These are mostly aimed at maintainers of binary packages for
 the beforementioned platforms. As an end user you might find it more convenient
@@ -133,6 +133,6 @@ We cannot accept them for various reasons.
 \smallskip
 
 dvdisaster releases are always published with cryptographic signatures
-and md5 checksums. See the \href{http://dvdisaster.net}{download site} for examples.
+and md5 checksums. See the \href{https://web.archive.org/web/20180428070843/http://dvdisaster.net}{download site} for examples.
 Be very cautious if signatures and checksums are missing, invalid or not
 matching those published at the sites mentioned above.