. replaced by a readclock 'driver' that runs once, a re-imported version
of the minix 2.0.4 readclock command.
. this has also restored cmos writing.
. readclock wrapper script calls service command to run /bin/readclock.drv
once.
. added atnormalize commands, which resets at driver timeouts and retries
to defaults
. usyslogd now logs to /usr/log/messages instead of /var (on root, which is
shrinking)
