convert tabs to spaces and fixes some formatting
convert tabs to spaces and fixes some formatting

mejackreed/leaflet-solr-heatmap,mejackreed/leaflet-solr-heatmap,LSHteam/leaflet-solr-heatmap,mejackreed/leaflet-solr-heatmap,LSHteam/leaflet-solr-heatmap,LSHteam/leaflet-solr-heatmap