[Cython] Cython's license

[Stefan Behnel]

Hi,

I must admit I've never read the PSF license until today. However, Cython is
officially licensed under the PSF license. That doesn't really make sense, as
this license is specific to Python itself. It is a license between the PSF and
the users of Python - however, we can't speak for the PSF, and thus can't
really decide to distribute software under that license...

I don't think the PSF will complain about this status, but wouldn't something
like the MIT or BSD license help us get back into state "legal" here?

Stefan