Fixes #31 - Add settings config from upstream

Incorporates custom settings config from upstream (the architecture, but not the content from https://github.com/codeforamerica/ohana-web-search/pull/444)
I would remove the part about the grant. The grant does not allow us to develop this SMC instance, and we might not continue to maintain this repo. I would just keep the first sentence and mention the team members if you want.