Updated necessory files for 2pncmin model (Reviewed by Fetzer).
- Units in the fluidsystem/brinevariablesalinity and components/nacl checked. Additional commented units removed. - Commented cout statements removed from computefromfugacities2pncmin, computefromreferencephase2pnc and miscible2pnccomposition - The ccommented out removed from problem file and input file corrected. - The test case is checked for both debug and optim model with clang compiler. git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@15203 2fb0f335-1f38-0410-981e-8018bf24f1b0