graphhopper_url: "//graphhopper.com/api/1/route"
mapquest_directions_url: "//open.mapquestapi.com/directions/v2/route"
mapzen_valhalla_url: "//valhalla.mapzen.com/route"
graphhopper_url: "//graphhopper.com/api/1/route"
mapquest_directions_url: "//open.mapquestapi.com/directions/v2/route"
mapzen_valhalla_url: "//valhalla.mapzen.com/route"