(Very rough.)

Fix up a few synopses.

Correct misuse of indexsubutem.

Describe the Queue class using {classdesc}{Queue}, not {funcdesc}{__init__}.

checkin of myformat.sty.

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

Some other minor nits that I happened to come across.

Makefile: Add dependency on libqueue.tex

lib.tex: Place the libqueue.tex documentation just after libthread.tex
since Queue depends on thread support in Python.