Readline support for Python 7b85-2.3 (Mac)

The python included with OS X does not include the readline module (readline is GPL'd -- nothing in the core operating system can be GPL'd because the GPL is an encumbered license -- it ain't freeware if it is GPL). Requires OS X 10.3. Drop readline.so into /Library/Python/2.3/ or visit the "product page" for detailed instructions (and source).