Initial Effort on Layer Control

Layers are displaying.
User can select alternate base layers
User can click permit layers on and off without effect on map.
Set up adjustment of heat map
- Calculate county values based on what permits are selected.
- set up chart to display counts from selected permits
Code clean up
Added references to permit data based on a spatial view
updated to latest stable version of leaflet
Worked to get layer selection working (can be added)
bug - error when layers are removed and when the local permit data are removed.