Proposal: split Chan and TChan into read and write ends

[Roman Cheplyaka]

* wren ng thornton <wren at freegeek.org> [2012-10-27 20:37:16-0400]
> It sounds like many people have implemented versions of this and
> uploaded them to Hackage already. Perhaps the best approach would be
> to (1) unify all those packages into a single "blessed" package, to
> reduce redundancy; (2) advertise that package as the way to go for
> new projects; (3) add it to the Platform if it gains traction; (4)
> maybe get around to deprecating the current Chan/TChan API some years
> down the road when it's no longer popular.

+1

Roman