0.4:
	insert 3DES (from NOS) VncAuth support
	correct some kludges in auth_vnc()
	change refresh request schedule, ask it by timer
0.3:
	rewrite code structure
	add mouse emulation support
	add support CoRRE RRE
0.2:
	dramaticly improve output performance (5:1)
	add support CopyRect
0.1:
	elementary VGA output, very slow, experimental	
0.0:
	inital rewrite vt52vnc, output to tektronics, work on unix