Make it so we can develop the site locally and without an Internet connection.

For local development:

* Change ancs.json to ancs.jsonp so we can load it with a <script>
  tag rather than AJAX. AJAX is blocked on file: URLs, so this makes
  it easier to develop the site locally.

And if you don't even have an Internet connection:

* If loading jQuery off of the Google CDN fails, try loading the local
  copy in static/bootstrap.
* If loading the Google Maps API fails, skip everything map related.
refactor the Javascript a little
after entering an address, put the user's SMD in the URL's fragment (...#1A02), and when the page is loaded if it sees an SMD in the fragment immediately pull up that SMD's info