Change the ordering of fields and time-period in MDS output file  when using periodic averaging: now writes one time record with the full set  of fields for this time period, then the next time reccord (it used to be  one field with the full set of time records then the next field) Note: this is now similar to NetCDF (MNC) output file.
Change the ordering of fields and time-period in MDS output file
 when using periodic averaging: now writes one time record with the full set
 of fields for this time period, then the next time reccord (it used to be
 one field with the full set of time records then the next field)
Note: this is now similar to NetCDF (MNC) output file.

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