#354: added map enhancement

added the following gfw enhancements:

on GFW map now each marker clickable. The popup displays lat/long, alert type, timestamp, and any other useful data sent back from the API.
a sortable table is shown below the map showing the same information, one row for each marker
table is updated when the date range changes
also have added pagination through list.js

demo:

National-Forestry-Authority / forests