Adjust map width
Added geolocation button
Hooked up routing service

* handles lat/lng or addresses

TODO: remove previous routing layer
Set base map and then load the layer explicitly
Leaflet layers group tutorial locally
Reset the map before running route()
Styling changes/fixes

- switch from radio to regular buttons
- disable 'find me' button if no geolocation
- enable scrolling in directionsPanel
- geolocation button now off map