First pass at leaflet marker map.  Not working yet.
Working leaflet choropleth
Cleaned out unused marker cluster files
Changed to stamen tiles
Revamped legend
Added link to Auerbach Times article
Set max bounds on map
Fixed coloring for zip code filtering. Made zip codes boundaries stand out more
Hide visualization until it is done loading
Added clear selections button for map. Made clear filters button more prominent for all graphs.
Fixed resizing of map for landscape layouts
Fixed resizing of map and increased size of borders
Added references to libraries to the README