Mdb revisions

Hi Lisa, Please see this PR for a basic example to of how to make my tabletop.js example work.

The js errors you are experiencing are related to code outside the scope of this example. Specifically, it seems as though you have a mix of Node.js- and browser-based JavaScript in your app.js file. My example does not require any server-side or Node.js-based code.

Please let me know if you have any questions.

Hope this helps!

Thanks,
Mike