[Distutils] PyPI update: legacy shutdown 30 April, new classifiers page, seeking funding

[Sumana Harihareswara]

And thanks, as ever, to Mozilla for their support for the PyPI &
Warehouse work, and to the PSF for facilitating this work!
https://pyfound.blogspot.com/2017/11/the-psf-awarded-moss-grant-pypi.html
https://blog.mozilla.org/blog/2018/01/23/moss-q4-supporting-python-ecosystem/

MOSS has a number of types of award that are open to different sorts of
open source/free software projects. If your project is looking for
financial support, check https://mozilla.org/moss to see if you qualify.
 The next application deadline is April 30th.

-Sumana