v1.5 (March 1, 2001)
	added signaling capability to handle some older UPS
	fixed timestamping bug (WARNING: master/slave must run same version!)
	fixed security problem with sleeping slave
	fixed recvfrom initialization bug

v1.4.1 (December 16, 1999)
	fixed bug with secure mode timestamping

v1.4 (December 4, 1999)
	fixed bug in multiple-slave configurations
	added (optional) TEA-based encryption to avoid malicious shutdowns
	cleaned up parsing of config file

v1.3 (September 17, 1999)
	low battery indication bug fixed

v1.2 (September 14, 1999)
	improved man page
	fixed return status

v1.1 (August 23, 1999)
	rereleased, with permission, under GPL

v1.0 (August 9, 1999)
	first public release
