Suggestion to use Fortran 90 syntax or newer where available

[monty241]

Code contains constructs like in ops_cals_stats.f90: if (somcpri .gt. 0.0) then Starting with Fortran 90 when I am correct (correct me if wrong), this can be replaced by:

if (somcpri = 0.0) then which is easier to understand by coders recently graduating. Replacing some other traditional Fortran constructs by more modern constructs might also help adoption.