At this time I have only the netcdf and freeform data working; we
will have the hdf4 handler setup once we figure out how to get it to
work along side the netcdf handler.
There are some known problems: http://scm.opendap.org:8090/trac/query?
status=new&status=assigned&status=reopened&group=milestone&component=ser
ver4&order=priority