probably needs more work, describing new functions and the differences
between unix/mac/win.

checkin of myformat.sty.

Change "\renewcommand{\indexsubitem}{(...)}" to "\setindexsubitem{(...)}"
everywhere.

Some other minor nits that I happened to come across.

ways to do it previously (not counting module names).

	* \bcode, \ecode added everywhere
	* \label{module-foo} added everywhere
	* A few \seealso sections added.
	* Indentation fixed inside verbatim in lib*tex files

passed to walk() visitor.

 unified style; etc.

Documented new formatting features: %s takes any type, and
'%(key)format' % dictionary.
Documented posixpath.expandvars().