hdf5doc

Changes since 19981124
----------------------

./src/H5T.c
	Fixed a typo in the registration of the `unsigned char' to
	`unsigned long long' type conversion that caused it to not be
	registered, falling back to software whenever that conversion
	path was taken.

./MANIFEST
./test/Makefile.in
./test/testhdf5.c
./test/testhdf5.h
./test/theap.c		[REMOVED]
./test/lheap.c		[NEW]
./test/tohdr.c		[REMOVED]
./test/ohdr.c		[NEW]
./test/tstab.c		[REMOVED]
./test/stab.c		[NEW]
	Removed the `t' from the front of these names and made each
	test a stand-alone program following the format of most of the
	other tests.

./test/big.c
	Uses libh5test.a but always sets the low-level driver to 1GB
	file family.

	The `#if' near the top to set the data space to 8GB has been
	simplified now that `long_long' is always defined and the
	error message is improved when `long_long' isn't wide enough.

	Cleanup code was added to the error handling.

./test/gheap.c
./test/istore.c
	Uses libh5test.a.  Added error cleanup code.

./test/dtypes.c
./test/h5test.c
	Added 68 new tests that check hardware and software
	conversions between `long long' and `unsigned long long' and
	the other integer types.  The tests only run on machines where
	sizeof(long_long)!=sizeof(long).  We test a total of 180
	different integer conversions, half in hardware and half in
	software.

	Cut down the number of times each test is run from 5 to 1 so
	it doesn't take so long.  If you want to run more times
	there's a constant that can be changed at the top of the file.

./test/extend.c
	Removed unused variable.

./test/h5test.c
./test/h5test.h
./test/external.c
./test/fillval.c
	The h5_cleanup() returns true/false so it can be used in an `if'
	statement to clean up additional files.

./doc/html/Environment.html
	Indented.  Added HDF5_PREFIX and HDF5_DRIVER descriptions.

./src/H5P.c
	Changed the trace type for the second argument from `Iu' to
	`x' since it's an output parameter.

./INSTALL
	Added a warning that the GNU zlib that comes with the latest
	version of HDF4 is too old to use with HDF5 and must be
	renamed so configure doesn't see it when `--enable-hdf4' is
	used.