[EME] PSA: The EME spec is now on GitHub: https://w3c.github.io/encrypted-media/

As discussed at TPAC and per Action 70, the EME source control repository
has been moved to GitHub. Please use https://w3c.github.io/encrypted-media/
when referencing the Editor's Draft.

EME files on the dvcs server now redirect to GitHub, but the dvcs server
may be decommissioned in the future.

Thanks to Mike Smith for getting us set up on GitHub!

MSE will be following a similar path soon, and there will be a separate
announcement.

David