options `start' and `stop' now (unless I have forgotten any). This allows
us to call the scripts from /etc/rc.shutdown with the correct option.
The (42 or so) ports that already DTRT before are unchanged.
Designed specifically for the APC SmartUPS devices, the
software is dependent on the SmartUPS interface and will
only function with SmartUPS devices.
Essentially, this is a simpler version of upsd.
