IOTDB Video #2 - the actual istate and ostate evolving

This video actually the istate and ostate as things change. Note again the
lack of concept of "actions" - everything I need to know can be learned by
observing dictionaries evolve.

https://www.youtube.com/watch?v=Bl0zI2vh5l8

The actual transitions are:

   - initially, istate={ on: false }, ostate={}
   - I press the button on the screen: istate={ on: false }, ostate={ on:
   true }
   - The thing actually turns on: istate={ on: true }, ostate={ on: true }
   - When all pending actions are complete, ostate is reset:
   istate={ on: true }, ostate={}

Ignore the @timestamp stuff for now - this is used to coordinate multiple
systems together.

D.