Reactive Streams utility API

[Pavel Rappo]

Hi James,

It sounds like the project is being very active. Glad to hear that! No matter
how good a mailing list is, in practice, it cannot be the best mailing list for
every topic there is. core-libs-dev is no exception. It's good to see you've
found another way to make progress on the project.

The question I was going to ask you was on the implementation internals

    org.reactivestreams.utils.impl.MutexExecutor

However, after examining the new repository, I found that not only has the code
in question disappeared, but the structure of the project has changed as well.

Will the API have the default implementation (ReactiveStreamsEngine)?

-Pavel