fix related to compilation --without-graphviz. no ModifierSpecies in libsbml 3.0.1.
fix related to compilation --without-graphviz. no ModifierSpecies in libsbml 3.0.1.

raim/SBML_odeSolver,raim/SBML_odeSolver,raim/SBML_odeSolver,raim/SBML_odeSolver