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/codec-specs/rs02.tex

@@ -74,7 +74,7 @@ the parity data portion of the image might not be written to the medium.
 Most current writing programs do however measure the .iso image by examining
 its file size, and will transfer the parity data correctly. To be sure you
 should follow the steps described under ``Testing image compatibility''
-at the dvdisaster site (\url{http://dvdisaster.net/en/howtos92.html}) once
+at the dvdisaster site (\url{https://web.archive.org/web/20180428070843/http://dvdisaster.net/en/howtos92.html}) once
 before using each version of your optical media authoring software.
 
 Like the other dvdisaster codecs, RS02 is based on a  RS(255,k) Reed-Solomon code
@@ -133,7 +133,7 @@ Its format is described in appendix \ref{eh}. For RS02, only the data fields
 marked with ``all'' or ``RS02'' are relevant; all other fields should be set to zero.
 
 Data layer $n$ does also contain the CRC32 checksums of each data sector
-upto the ecc header. If the .iso image contains $s$ sectors, 
+up to the ecc header. If the .iso image contains $s$ sectors,
 then the CRC field contains $4s$ bytes, rounded up
 to the nearest multiple of 2048. 
 CRC32 checksums are calculated over a whole CD sector comprising 2048 bytes.