route_geometry json changed format between 0.3.8 and 0.4.3 from array of arrays to array of strings

Example 0.3.8:

``` JSON
   "route_geometry" : [
      [
         51.46542,
         6.763
      ],
      [
         51.46577,
         6.76368
      ],
      [
         51.46593,
         6.764
      ]
   ],
```

Example 0.4.3

``` JSON
  "route_geometry" : [
      "51.465396,6.762954",
      "51.465904,6.763943"
   ],
```
