changes in pkg/seaice: change default for SEAICEuseFluxForm & DIFF1 ;  add some safety check ; update output & seaice param file in verification exp.
changes in pkg/seaice: change default for SEAICEuseFluxForm & DIFF1 ;
 add some safety check ; update output & seaice param file in verification exp.

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h