[master] manpage improvements
Mention that shutdown command has optional "pid" option. And reword about boss process may restart "if configured". (discussed on jabber.) Some minor docbook formatting improvements. Remove note about bind10 pid file is for testing purposes. (Since can be used for admin purposes as discussed briefly on jabber.) Remove mention of "setuid" component (feature was removed). Slight wording clarifications. Add some notes but still commented out. Mention about sockcreator file. Update manual and copyright dates.