Change UserClusterer to work with DataModel types instead of flat files.
Change UserClusterer to work with DataModel types instead of flat files.

It currently crashes because of memory consumption. Need to look into this.

monsendag/goldfish,monsendag/goldfish,ntnu-smartmedia/goldfish,monsendag/goldfish,ntnu-smartmedia/goldfish,ntnu-smartmedia/goldfish