hdf5doc

Changes since 19981125
----------------------

./doc/html/Datatypes.html
./src/H5.c
./src/H5T.c
./src/H5Tconv.c
./src/H5Tpkg.h
./src/H5Tpublic.h
./src/H5detect.c
./test/chunk.c
./test/dtypes.c
./test/h5test.c
./test/mtime.c
./test/tattr.c
./test/th5s.c
./tools/h5dump.c
./tools/h5dumputil.c
./tools/h5import.c
./tools/h5ls.c
./tools/h5toh4.c
./tools/h5tools.c
	Renamed the old H5T_NATIVE_CHAR type to H5T_NATIVE_SCHAR to
	denote that it is always signed.

	Added a new H5T_NATIVE_CHAR type which has the same range,
	representation, and behavior as either H5T_NATIVE_SCHAR or
	H5T_NATIVE_UCHAR depending on the compiler and its
	command-line switches for the application source file which
	references H5T_NATIVE_CHAR. If source files are compiled with
	different switches then each source file will resolve
	H5T_NATIVE_CHAR appropriately so it matches the C type `char'
	in that source file.

	NOTE: THERE ARE OTHER DOCUMENTATION FILES THAT I DIDN'T CHANGE
	BECAUSE I CAN'T MODIFY THE SOURCE.

./test/extend.c
	Swapped two lines to prevent diagnostic messages from messing
	up the formatted output.