Server-side geo clustering

This is a quick demo of server-side map markers clustering. It's basically the same functionnality as gmaps-utility-library's MarkerClusterer[1], but clustering is done server-side instead of client-side.

[1] http://gmaps-utility-library.googlecode.com/svn/trunk/markerclusterer/1.0/docs/reference.html

Install flask and ./run.sh demo/demo.py for a small demo