Rotonde: the IOT library

Hi Josh, Yep, there is MQTT that could fit the job too. But for the purpose we wanted a much more accessible approach, and an easier learning curve (you just need a websocket chrome extension to start playing with it).

Anyway ROS and rotonde don't really fit the same role, and you could totally imagine packaging a ROS app in a docker container, and have it communicate with the rest of the system through rotonde's websocket.