Ken Baskett

Right now this PR feels like it is going in a couple of different directions. In addition to serial data functionality, it's also introducing the `private_apps` concept. Are both required...

> Agree. > > Honestly, the trouble is that I'm working off the device as I go, and I actively use it all day. With that said, I'll submit some...

@avi-perl This PR adds processing for events over a serial connection, heavily inspired by your previous PR. I'd love your feedback if you have the time.