The implementation of `async`/`await` in `kotlinx....

# coroutines

[elizarov]

The implementation of `async`/`await` in kotlinx.coroutines will change, too. You will definitely be able to specify your own dispatcher whenever you start coroutine with async or a similar construct and we are also looking to introduce some concept of default disptacher that you can install in your own framework to schedule execution in your own thread without having to write your own implementation of async, asyncGenerate and other builders that we'll provide.