Markers and Badges

* The color of the badge reflects the color of the path, so it's easy to see which path is for which address from the list
* When the user hover the marker, the name of the city is shown. If it is not found by the geoip API, it just prints "unknown location"

So, it seems that our current geoip API is pretty bad at finding cities, couldn't even find Brussels or London, so maybe we need to look into the Google Geocoding API (https://developers.google.com/maps/documentation/geocoding/?csw=1#ReverseGeocoding).