This closes SF bug #459256.

file HTML files on Windows machines do to case insensitivity.

Fix up a few synopses.

	\setindexsubitem{(in module frobnitz)}

These are no longer needed when present before any other \setindexsubitem{}
in the module section.  The indexsubitem is now set by \bimodindex and
\stmodindex.

works better with LaTeX2HTML, and allows some simplification of the python.sty
macros.

checkin of myformat.sty.

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

Some other minor nits that I happened to come across.

	      "{\em ...}" ==> "\emph{...}"

	      Not at all sure what to do with "{\rm ...}".
	      Leaving it for now.

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