Geocoding in utils.py

[rleh]

def get_city_by_coordinates(lon, lat)

in utils.py line 11 is not implemented, but a geocoding function is implemented in the geocoding module.
Is the function from utils.py used anywhere or can we remove it?
Otherwise we should be able to reuse the existing geocoding code somehow. Maybe by separating the request parsing and photon geocoding somehow?

[rleh]

The function is used here:

ocyco-server-python/ocyco/api/tracks.py

Line 133 in 6d8e04e

track_city = get_city_by_coordinates(json['data'][0]['lon'], json['data'][0]['lat'])