changed datetime class back to using properties, use case in JulianDayFromDate to seperate between python datetime and netcdftime.datetime objects
changed datetime class back to using properties,
use case in JulianDayFromDate to seperate between python datetime and netcdftime.datetime objects

Unidata/netcdf4-python,Unidata/netcdf4-python,Unidata/netcdf4-python