- rename argument HEFF (become fld3d) and HEFFM (become iceMsk)   to make clear distinction with variables HEFF & HEFFM in SEAICE.h - put exchanged variable in (local) common block for MPI+MTH
- rename argument HEFF (become fld3d) and HEFFM (become iceMsk)
  to make clear distinction with variables HEFF & HEFFM in SEAICE.h
- put exchanged variable in (local) common block for MPI+MTH

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