upwind weight can now be set with a parameter file

dumux/boxmodels/1p/1plocalresidual.hh

dumux/boxmodels/1p2c/1p2clocalresidual.hh

dumux/boxmodels/1p2c/1p2cmodel.hh

dumux/boxmodels/2p/2pfluxvariables.hh

dumux/boxmodels/2p/2plocalresidual.hh

dumux/boxmodels/2p/2pproblem.hh

dumux/boxmodels/2p2c/2p2clocalresidual.hh

dumux/boxmodels/2p2c/2p2cmodel.hh

dumux/boxmodels/2p2cni/2p2cnilocalresidual.hh

dumux/boxmodels/2pni/2pnilocalresidual.hh

dumux/boxmodels/common/boxlocalresidual.hh

dumux/boxmodels/richards/richardslocalresidual.hh

dumux/common/basicproperties.hh

dumux/common/parameters.hh