* The helper tools in archive/ were found to be under DFSG- incompatible licensing terms. Create a reduced orig tarball and replace them with their functional equivalents from contrib/. (One of them is a python script, so introduce python as new dependency.) * Collect the conglomeration of different licenses in debian/copyright. * Heed DEB_BUILD_OPTIONS=nostrip. Closes: #437183. * Clean up debian/rules and debian/changelog.