update date format

[ocefpaf]

This server is still on ERDDAP 2.18 and has a non-standard date/time variable. The format change, but we are also experiencing erros when the variable and constraints are in a different order:

base = "https://opendap.co-ops.nos.noaa.gov/erddap/tabledap/IOOS_Hourly_Height_Verified_Water_Level.csv?"
works =  'WL_VALUE,time&DATUM="MSL"&BEGIN_DATE="20161004"&END_DATE="20161012"&STATION_ID="8651370"'
do_not = 'WL_VALUE,time&BEGIN_DATE="20161004"&END_DATE="20161012"&DATUM="MSL"&STATION_ID="8651370"'

Those two should be the same in ERDDAP, but here one works and the other fails with:

Error {
    code=500;
    message="Internal Server Error: ERROR from data source: org.postgresql.util.PSQLException: ERROR: Invalid time requestesd.
  Where: PL/pgSQL function inline_code_block line 1 at RAISE";
}

[MathewBiddle]

FYI @LindsayRAbrams. Curious if you know who manages https://opendap.co-ops.nos.noaa.gov/erddap/index.html?