[Catalog-sig] Pypi cdn for hosted packages

[Jesse Noller]

Thread fork. 

Anyway. I know we have at least 1 major rep of a cloud provider on the list, and I have at least one off in my pocket.

I'd like to start discussing (completely ignoring past efforts and discussion which got bogged down) how we can start distributing the package data we host via CDN rather than the mirroring system.

Most of all, we need the code in a pull request to support it ;)