Adapted all implicit models and the geomechanics model such that the...
Adapted all implicit models and the geomechanics model such that the addOutputVtkFields() function only considers interior nodes. This is relevant for parallelisation. See flyspray task 221 for details. Reviewed by Bernd. git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@13429 2fb0f335-1f38-0410-981e-8018bf24f1b0