Merge remote-tracking branch 'openstreetmap/pull/1439'

diff --combined app/assets/javascripts/index/directions/graphhopper.js
index 03edb0633996fc17eef933e68c86093b536c26a2,267b1b4a6af09919423899e2eee921ee39ce978f..7a5d77d9bd50eae15c8be46df1cffdf5711553e2
--- 1/app/assets/javascripts/index/directions/graphhopper.js
--- 2/app/assets/javascripts/index/directions/graphhopper.js
+++ b/app/assets/javascripts/index/directions/graphhopper.js
@@@ -49,12 -49,16 +49,16 @@@ function GraphHopperEngine(id, vehicleT
              instrText += instr.text;
              var latLng = line[instr.interval[0]];
              var distInMeter = instr.distance;
+             var lineseg = [];
+             for (var j = instr.interval[0]; j <= instr.interval[1]; j++) {
+               lineseg.push({lat: line[j][0], lng: line[j][1]});
+             }
              steps.push([
 -              {lat: latLng.lat, lng: latLng.lng},
 +              {lat: latLng[0], lng: latLng[1]},
                instrCode,
                instrText,
                distInMeter,
-               []
+               lineseg
              ]); // TODO does graphhopper map instructions onto line indices?
            }