Merge branch 'master' into lowercase

Knot.files

configure.ac

m4/knot-check-header.m4

src/Makefile.am

src/common/namedb/namedb.h

src/common/namedb/namedb_lmdb.c

src/common/namedb/namedb_lmdb.h

src/common/namedb/namedb_trie.c

src/common/namedb/namedb_trie.h

src/knot/conf/conf.c

src/knot/conf/conf.h

src/knot/ctl/remote.c

src/knot/main.c

src/knot/nameserver/notify.c

src/knot/server/server.h

src/knot/server/udp-handler.c

src/knot/zone/events/handlers.c

src/knot/zone/timers.c

src/knot/zone/timers.h

src/knot/zone/zonedb-load.c