It's perhaps unfortunate that the output value of buflen had +1 change
in meaning in commit 19a3cad6, but the name clearly indicates that we
care about length of the buffer, i.e. space terminating zero *is*
counted on input, so let's be consistent and count it on output as well.

The problem has been fixed, apparently.

Previously the help function output in the docker config listed port 80
as the port on which the server would listen for DNS over UDP and TCP.
However that was inconsistent with the first output line where it was
indicated to be port 53. This has now been corrected.

daemon/tls: fix broken compatibility with gnutls 3.3

Closes #438

See merge request !741

Modernize graphs in HTTP module

See merge request !736

Improvements for DNSSEC logging

See merge request !735

NEWS: 3.2.0 release

See merge request !730

packaging updates

Closes #419

See merge request !712

Don't explicitly load policy module, which is loaded by default anyway.

Fedora, CentOS and Ubuntu 16.04 are missing lua-basexx dependency.
Since it's just a single file, it's easier to bundle it with the module.

Related https://gitlab.labs.nic.cz/knot/knot-resolver/merge_requests/711