Merge branch 'master' into conf_optimization

.gitignore

Knot.files

libtap/Makefile.am

src/knot/ctl/knotc_main.c

src/knot/dnssec/nsec-chain.c

src/knot/dnssec/nsec-chain.h

src/knot/dnssec/nsec3-chain.c

src/knot/dnssec/nsec3-chain.h

src/knot/dnssec/zone-events.c

src/knot/dnssec/zone-events.h

src/knot/dnssec/zone-nsec.c

src/knot/dnssec/zone-nsec.h

src/knot/dnssec/zone-sign.c

src/knot/dnssec/zone-sign.h

src/knot/main.c

src/knot/nameserver/update.c

src/knot/server/zone-load.c

src/knot/server/zones.c

src/knot/updates/ddns.c

src/knot/updates/xfr-in.c