square/otto — pull request #51 by adennie (2013-01-31 20:16:02+00:00)
Title: add base interface OttoBus, have Bus implement it.

Creating a base interface allows instances of classes that act like a Bus but aren't a Bus (e.g. ScopedBus) to be passed around as a standard interface. To minimize disruption to existing code, I left the name of the Bus class alone and named the interface OttoBus.