Merge branch 'master' into rule_based_answering

src/common/sockaddr.c

src/knot/ctl/knotc_main.c

src/knot/ctl/remote.c

src/knot/dnssec/nsec-chain.c

src/knot/dnssec/nsec-chain.h

src/knot/dnssec/nsec3-chain.c

src/knot/dnssec/zone-sign.c

src/knot/nameserver/chaos.c

src/knot/nameserver/internet.c

src/knot/nameserver/nsec_proofs.c

src/knot/server/zones.c

src/knot/updates/changesets.c

src/knot/updates/ddns.c

src/knot/updates/xfr-in.c

src/knot/zone/node.c

src/knot/zone/semantic-check.c

src/knot/zone/zone-create.c

src/knot/zone/zone-diff.c

src/libknot/dnssec/sig0.c

src/libknot/packet/pkt.c