FORTIFY complains:
dki.c:134:3: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]

Thus check the value and make it happy
Add a very minimal man page for zkt-soaserial(8), primarily to make lintian happy
Remove the generated html+pdf pages, as they are generated from the man page
Add a simply copyright file to make Lintian happy
Ignore the generated config.h.in~, dh leaves that around it seems
Avoid warning about maintainer mode
* Fix lintian issues
* Upgrade to debhelper 9 (from 8), this turns on hardening (FORTIFY etc)
* remove trailing slash from the bind_util_path otherwise there where two
* Add the zkt-soaserial man page to the package
* Remove the 'define extern' + 'undef extern' everywhere that messes with fortified compilations