also deprecate Dumux::startWithParameters()

as decided in FS#122. In a nutshell, Dumux::startWithParameters() has
been renamed to Dumux::start().

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@7710 2fb0f335-1f38-0410-981e-8018bf24f1b0