added layer for Bromley map from geoserver
read tiny parcel geojson from geoserver(postgis)

* removed local file too
get centroids from geoserver (postgis query)
add geoserver config data, etc

* added xml files defining the data sources and data layers
  with the PostGIS queries for fetching parcels under 100sqft
  and getting the centroids of the parcels.
* added the script used for fetching NYPL map tile data
* removed some unused stuff
updated readme to describe what I'm doing in this repo
Merge remote-tracking branch 'origin/master'
Update README.md

fixed some formatting
updateded map to use my own server as data source