Add test for extending L namespace
Add test for extending L namespace

CapeSepias/Leaflet,geoloep/Leaflet,stefanocudini/Leaflet,geoloep/Leaflet,stefanocudini/Leaflet,scaddenp/Leaflet,msiadak/Leaflet,Leaflet/Leaflet,CapeSepias/Leaflet,msiadak/Leaflet,Leaflet/Leaflet,geoloep/Leaflet,scaddenp/Leaflet,scaddenp/Leaflet,Leaflet/Leaflet,msiadak/Leaflet,CapeSepias/Leaflet,stefanocudini/Leaflet