MadGraphControl adding an error and Higgs parameter settings
Adding an error to the known list, another stty error that comes because of the handling of input and output between the python and fortran layers in MG5_aMC. Hope to investigate these with the authors soon.
Also splitting the top parameters function into settings for SM parameters and for top parameters (calling the SM parameter settings from the top parameter settings, so that their behavior is unchanged).
Also splitting off the Higgs parameter settings, and adding the setting of the Higgs decay fractions as a part of a helper function. Calling this from the top parameter setting function as well. Likely future setups will want to call this top parameter setting function.