Merge branch 'man' into 'master'

doc/footer

doc/header

doc/lektor.1

doc/lektord.1

doc/lkt.1

doc/lktadm.1

inc/lektor/cmd.h

meson.build

scripts/getmanpath.sh

scripts/man.sh

src/cmd.c

src/config.c

src/database/playlist.c

src/database/queue.c

src/main/lkt.c

src/main/lktadm.c

src/net/downloader.c

src/net/listen.c

src/thread.c