RFC: GitHub Projects and Issues

Greetings all,

You may (or not) have noticed that recently I have been experimenting 
with GitHub Projects.
Creating a few for the major long-term efforts and assigned a number of 
the open PRs to them.

IMO this looks like it could be a better way to track progress on 
incomplete features or code conversions instead of wiki Feature pages.
But the current limitation that only PRs can be linked to it prevents it 
being a full replacement. We do not currently have a good way to add 
TODO listings to track how close to complete it is.

That limitation might be resolved by enabling GitHub Issues for (only) 
feature-enhancement TODO items prior to PR creation.

Amos