Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.|Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.|Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.|Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.|Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.|Department of Informatics, University of Bergen, N-5020 Bergen, Norway. Ivan.Kolesar@UiB.no.