quick demo of HTTP PATCH working over SoLiD

GOLD servers now allow notifications to the container when one of the files
is patched.

To illustrate this I put together a quick demo.

The UI displays a post in a container, and listens for changes.  If one is
found it refreshes.

I also hooked up a websocket to check to see if the heart had been clicked
and PATCH a cycle a new image from a list.  Here's the results:

https://youtu.be/aOGqzPXYWGM