Computational Biology Unit, Bergen Center for Computational Science, University of Bergen, Bergen, Norway. slars@ii.uib.no <slars@ii.uib.no>|Computational Biology Unit, Bergen Center for Computational Science, University of Bergen, Bergen, Norway. slars@ii.uib.no <slars@ii.uib.no>|Computational Biology Unit, Bergen Center for Computational Science, University of Bergen, Bergen, Norway. slars@ii.uib.no <slars@ii.uib.no>