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/howtos.tex

@@ -1822,7 +1822,7 @@ process of creating error correction files using these options. The
 first option marked green lets dvdisaster create the error correction
 file immediately after the medium has been (completely) read.
 The second option marked green deletes the image when the error correction
-file has been sucessfully created.
+file has been successfully created.
 
 \bigskip