celluloid/celluloid-io — pull request #58 by halorgium (2013-04-19 05:39:35+00:00)
Title: Using a Celluloid::IO socket inside a Celluloid::ZMQ is detected as evented

This is because a `Celluloid::ZMQ::Mailbox` is a `Celluloid::IO::Mailbox`.
We could add a superclass in Celluloid with the logic and subclass in both libs.