i've sent kenji the translated program.  it would be cleaner with 9p.h but i haven't
had a chance to do it yet.  lib9p would replace a significant chunk of the program,
since it serves a handful of files
	ctl	management
	lock	blocks updates to allow external programs to mess with state
	msgid	looks up lines in history file given msgid
	post	accepts one or more articles for posting, separated by 0 length writes