Make dimensionless the default of new_unit in chemreac.units.to_unitless
Make dimensionless the default of new_unit in chemreac.units.to_unitless

chemreac/chemreac,chemreac/chemreac,bjodah/chemreac,chemreac/chemreac,bjodah/chemreac,chemreac/chemreac,bjodah/chemreac,bjodah/chemreac