changed parser so that the binding mode is indicated as "bind (list)", "bind (set)" or "bind (res)"; if only "bind" is given, then bind (list) is assumed as default

no_document use_thys
   ["Nominal2_Base",
    "Nominal2_Eqvt",
    "Nominal2_Atoms",
    "Nominal2_Supp",
    "Atoms"];