* Imported Upstream version 2.20+dfsg1 - Drop patches applied upstream. - Refresh remaining patches. - d/rules: Update SHA256 for alpine 2.20. * Update Standards-Version to 3.9.6. * d/watch: Narrow the regex to only match source tarballs. * d/alpine-doc.docs: tech-notes.txt moved to under the tech-notes/ dir. * d/control: Update Vcs-Browser for cgit. * d/p/10_alpine_1.10_spooldir.patch: Fix a few more references. * d/p/40_fix_browser_hardcoded_paths.patch: - Fix hardcoded paths to specific browsers. * d/p/40_fix_tech_notes_hardcoded_paths.patch, d/rules: - Drop patch in favor of changing paths after the build.