Adding geographical information to api

[sven4all]

I would like to add geographical information into this api, before I start doing the programming work I would like to discuss the approach and if it's desirable to include this information in this application.

1. Download latest IFF (http://data.ndovloket.nl/ns/)
2. extract stations.dat from IFF
3. import all stations in a map stationCode -> wsg84 coordinates and store them in a staticDataStore (simalar to dataStore)
4. look up stationcodes in the map when processing the JSON requests.

Besides the locations it would also be nice to include shapes of the routes (or at least between two stops) in the future, but I am not sure if there is a good open data source available for that.