geojson test

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.min.js

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3-legend.min.js

https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.3/leaflet.js