Included SystemOverview.png image of demo system.

Update README.md.

Added sounds as well to make change more noticable.

Update to include some LED color info.

Added functionality for handling ledcolor delta callbacks and updating LED color

Fixed launch bug in LaunchRequest.

Added raspberryPiThingyIoTShadow.py, ThingyIntentSchema.txt, and thingyLambdaindex.js files.

Modified basicShadowDeltaListener.py example to include delta handler as well as pushing some date to the cloud.

Added example basicShadowDeltaListener.py with new filename basicThingyShadowDeltaListener.py.

Update Echo example to get better logging.

Added AWS IoT Device SDK Python ThingShadowEcho.py.

Updated README.md

Initial commit