- add a warning when used with pkg/aim but without updating SST   (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
- add a warning when used with pkg/aim but without updating SST
  (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).

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