[#69043846] Set up different configurations, controlled by environment variable, defaulting to dev.
Merge pull request #1 from codeforamerica/add-different-configs

Merging: Set up capability for different configurations
Button works and sends an AJAX request with data and everything.
Merge branch 'master' into adding-address

* master:
  [#69043846] Set up different configurations, controlled by environment variable, defaulting to dev.

Conflicts:
	main.py
Add shell endpoint that takes data
Server now errors on empty address also.