HFVHANDLER-199, final code touch up and more testing
HFVHANDLER-199, final code touch up and more testing

OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler