filter_time_range() should return sorted results

[sgdecker]

This code

from datetime import datetime, timedelta
from siphon.catalog import TDSCatalog
yesterday = date.utcnow() - timedelta(days=1)
start_time = yesterday.replace(hour=12, minute=0, second=0, microsecond=0)
end_time = start_time + timedelta(hours=6)
cat = TDSCatalog('http://thredds.ucar.edu/thredds/catalog/satellite/SFC-T/SUPER-NATIONAL_1km/'
                 '{dt:%Y%m%d}/catalog.xml'.format(dt=yesterday))
datasets = cat.datasets.filter_time_range(start_time, end_time)
print(datasets)

outputs

[SUPER-NATIONAL_1km_SFC-T_20190105_1800.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1700.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1600.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1500.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1400.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1300.gini, SUPER-NATIONAL_1km_SFC-T_20190105_1200.gini]

It would be more natural to me if this list were in time-sorted order (first to last rather than vice versa).