v0.13.69

* fix a number of CVEs reported with special *.zip PoC files
* man-pages are generated with new dbk2man.py - docbook xmlto is optional now
* completing some doc strings while checking the new man-pages to look good
* allow the zziptests.py testsuite to run with an installed /bin path
* try to fix some issues on testing with non-installed binaries on non-linux platfors
* update autotools to allow compiling on some newer Mac / Win machines
* a zip-program is still required for testing, but some errors are gone when not there
* complete the approximation of fnmatch for the test binaries (on platforms without)
* allow windows __mmap.h to be simpler, helping with some problems on MingW
* integrate 'fopen("wb")' from TexLive to be more portable across
* more portability as well for helpers like strnlen being used in the sources
* update doc refs to point to github instead of sf.net
* update the sf.net pages to have a prominent hint on newer github.com location