this is probably a temporary measure: if the new thermodynamic
framwork is adopted, then they will replace the 2p2c(ni) models in the
stable repository, if not these models will be deleted.



git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@5340 2fb0f335-1f38-0410-981e-8018bf24f1b0