[dmd-concurrency] std.concurrency

[Igor Lesik]

>Okay, I checked in the first cut of this module.  It still lacks receiveTimeout and receiveOnly, but plain old send/receive are in place.  I'll see about >improving it over then next N days.

Excellent, thanks.

Please, consider an idea to check if first parameter of receive() is not delegate but integral and treat it as timeout value. It makes both receiveTImeout() and receiveOnly() one liners.