For heroku staging

@jina 

I left the original stuff in the config file in case we needed it for a different deploy setup (like whatever production will be). The script below builds the app into a static site up on heroku.

:fire: :lips: :fire: => "flaming lips"

Others on the project, ping me if you need to be added to the heroku app as a collaborator and you want to ship stuff to staging.