Features
* make `of` return a new Emitter instance (56)
* make the module compatible with socket.io-redis 5.x (55) (by v4l3r10)
Breaking changes
This is the first version compatible with `socket.io-redis 5.x`
Milestone: [3.0.0](https://github.com/socketio/socket.io-emitter/milestone/3)
Diff: [2.0.0...3.0.0](https://github.com/socketio/socket.io-emitter/compare/2.0.0...3.0.0)