Add IDs to new route form

- form id
- start and destination field ids
Add Geocode address support

- User enteres destination address using autocomplete
- Address is geocoded
- Start and destination longitude and latitude are sent as a JSON to rails on form post
- Refactor to geocode on input form change to speed up post to rails
Merge pull request #10 from zkarst/javascript-routes

Geocode new route form input addresses