"not in" operator.

	Use spaces instead of tabs to indent structure definition; tabs don't
	work in tex/latex.

PyImport_FrozenModules:
	struct _freeze ==> struct _frozen

status of the GNU readline interface.  Here's a patch, by Vladimir
Marangozov.

save and restore the tstate, but explicitly calling
PyEval_SaveThread() does reset it!  While I think about how to fix
this for real, here's a fix that avoids getting a fatal error.

platforms.  Argh!

This should make everybody happy, especially since we don't say what
the argument type is (there is disagreement on that, too :-( ).

directory structure.

Open files in binary mode
(Jack)

identifier.  The previous re.py had a bug that wouldn't show up with
single-char identifier...

(Two small changes to shup up gcc added.)