Bug fix: Moved exchange of (U,V) from end or s/r to before calculation of W. Reported by Tor Eldvik.
Bug fix: Moved exchange of (U,V) from end or s/r to before calculation of W.
Reported by Tor Eldvik.

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