Merge with concurrent-ruby gem #50
Description
The concurrent-ruby gem (https://github.com/jdantonio/concurrent-ruby) is rapidly becoming the "java.util.concurrent of Ruby". There's a ton of folks contributing, it supports damn near every concurrency construct there is, and work is ongoing to build native VM support for the major implementations. I believe it's the library we should all collaborate on.
To that end, I'd like to merge this gem into that one. We'd do another release of this gem with a dependency on concurrent-ruby, and the contents of this gem would merge into that codebase. We're probably going to put everything under the new ruby-concurrency org (https://github.com/ruby-concurrency).
Hopefully no contributors have objections. I think most folks doing threading in Ruby will appreciate having a single library dependency that provides a full set of concurrency features.