Merge branch 'master' into dnssec-over-ddns

doc/configuration.texi

doc/introduction.texi

doc/knot.texi

doc/migration.texi

doc/reference.texi

doc/running.texi

man/knot.conf.5.in

samples/knot.full.conf

src/common/hattrie/hat-trie.c

src/common/hex.c

src/common/log.c

src/knot/conf/cf-lex.l

src/knot/conf/cf-parse.y

src/knot/conf/conf.c

src/knot/conf/conf.h

src/knot/ctl/remote.c

src/knot/main.c

src/knot/server/dthreads.c

src/knot/server/journal.c

src/knot/server/tcp-handler.c