Python2.6 and Python3.0 beta2

The second beta release of Python 2.6 and the second beta release of Python 3.0 are good to go.From here on out, we're working on stability and bug fixes for final - this means I've got to close out the remaining multiprocessing package bugs and clean up the docs. I really encourage people to download and test - it's important that these releases are as high-quality as possible. There's a lot of changes in both 2.6 and 3.0 and there's a lot of ground to cover.