Gracefully handle GPX points without time or elevation (fixes #1)
Gracefully handle GPX points without time or elevation (fixes #1)

Signed-off-by: Maxime Petazzoni <d85b6a1285e9bda1f090e0e96b2c20e3f562641e@turn.com>

mpetazzoni/leaflet-gpx,justb4/leaflet-gpx,dayofr/leaflet-gpx