update doc

doc/html/66-all.html

doc/html/66-dbctl.html

doc/html/66-disable.html

doc/html/66-enable.html

doc/html/66-env.html

doc/html/66-init.html

doc/html/66-inservice.html

doc/html/66-intree.html

doc/html/66-parser.html

doc/html/66-scanctl.html

doc/html/66-scandir.html

doc/html/66-start.html

doc/html/66-stop.html

doc/html/66-svctl.html

doc/html/66-tree.html

doc/html/66-update.html

doc/html/frontend.html

doc/man/66-all.1.scd

doc/man/66-boot.8.scd

doc/man/66-dbctl.1.scd