merge linux_amd64_ifort+mpi_beagle into linux_amd64_ifort_beagle + set F90C (and flags) to a reasonable compiler (needed for free format f90 files)
merge linux_amd64_ifort+mpi_beagle into linux_amd64_ifort_beagle
+ set F90C (and flags) to a reasonable compiler (needed for free format f90 files)

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