vchoi_fork

[svn-r299] Changes since 19980224
----------------------

./html/Files.html
	Added a few details for some of the new H5Pset/get functions.

./src/H5F.c
./src/H5Fpublic.h
	Fixed automatic closing of files on exit().

	Added public H5F_ACC_DEBUG.  Using it to create or open a file
	turns on debugging for that file, which currently just prints
	cache statistics when the file is closed.

./src/H5G.c
	An error is returned if one tries to set the current working
	group to something other than a group.

./src/H5Gnode.c
	Fixed a symbol table bug.  Under certain circumstances it was
	possible to enter a symbol in such a way that lookup of that
	symbol failed. A bug report was sent to hdf5dev.

./src/H5P.c
./src/H5Ppublic.h
	Added the H5Pget_...() functions for file drivers.  The
	H5Pget_mpi() is a no-op that always fails.