Merge branch master into libdnssec

scripts/Dockerfile

src/knot/ctl/knotc_main.c

src/knot/ctl/remote.c

src/knot/nameserver/axfr.c

src/knot/nameserver/internet.c

src/knot/nameserver/ixfr.c

src/knot/nameserver/notify.c

src/knot/server/tcp-handler.c

src/knot/server/udp-handler.c

src/knot/updates/ddns.c

src/knot/updates/zone-update.c

src/knot/zone/zone.c

src/libknot/errcode.c

src/libknot/errcode.h

src/libknot/internal/namedb/namedb_lmdb.c

src/libknot/internal/namedb/namedb_trie.c

src/libknot/internal/net.c

src/libknot/internal/net.h

src/libknot/internal/sockaddr.c

src/libknot/packet/pkt.c