Update pbi-manager10:

 * add PATH links to /usr/pbi/bin
 * add MAN links to /usr/pbi/man
 * add rc.d entries to /usr/pbi/rc.d
 * add MANPATH file to /usr/local/etc/man.d/pbi.conf

This will keep PBIs out of the /usr/local namespace, while still
keeping manpage / rc.d / path functionality intact