Added JSDoc comments.
Added JSDoc comments.

WSDOT-GIS/Traveler-Information-LeafletJS-Map,WSDOT-GIS/Traveler-Information-LeafletJS-Map,WSDOT-GIS/Traveler-Information-LeafletJS-Map,JeffJacobson/Leaflet-Intersection-Router,JeffJacobson/Leaflet-Intersection-Router