was incomplete; complete the fix.
2. There is an inconsistency in the netcdfh interface
about whether rank (# dimensions) is an int or
size_t. I inadvertently assumed the latter and that
breaks some API calls; so revert back.
to indicate that they only work for atomic types,
not user defined types.
2. modified NCDEFAULT_{get/put}_vars to no longer use
nc_get/put_varm. They now directly use nc_get/put_vara
directly. This means that nc_get/put_vars now work
properly for user defined types as well as atomic types.
3. Added test cases for get_vars/put_vars with a
user defined type. Tests placed into
nc_test/tst_compounds.c
