Merge branch 'search' into 'master'

inc/lektor/commands.h

inc/lektor/database.h

inc/lektor/defines.h

inc/lektor/net.h

src/commands.c

src/database/find.c

src/database/queue.c

src/database/stickers.c

src/main/lkt.c

src/net/command.c

src/net/listen.c