hdf5_ep

[svn-r944] Changes since 19981120
----------------------

./MANIFEST
./test/Makefile.in
./test/shtype.c		[REMOVED]
	Removed shtype.c because it was all commented out.  Besides,
	these tests are done in dtypes.c now anyway.

./test/external.c
./test/fillval.c
./test/flush1.c
./test/flush2.c
./test/links.c
./test/mount.c
./test/mtime.c
./test/unlink.c
	The tests that check the HDF5 API use the h5test support
	functions. For one thing, that means that you can specify the
	file driver that thay use by the HDF5_DRIVER environment
	variable. Possible values are:

	    HDF5_DRIVER='sec2'		Use read() and write()
	    HDF5_DRIVER='stdio'		Use fread() and fwrite()
	    HDF5_DRIVER='core'		Use malloc() and free()
	    HDF5_DRIVER='split'		Split meta and raw data
	    HDF5_DRIVER='family N'	Use file families with each
					member being N megabytes (N
					can be fractional, defaults to
					one).

	Some tests might fail for certain drivers: for instance, the
	mount and link tests fail for the `core' driver because
	they must be able to close and then reopen a file.