hdf5_ep

[svn-r150] Changes since 19971219
----------------------

./src/H5private.h
        Changed HDF5_MAJOR_VERSION to 5

./src/H5Aprivate.h
./src/H5Apublic.h
        Added group atoms.

./src/H5D.c
./src/H5P.c
./test/istore.c
./test/tohdr.c
./test/tstab.c
        Updated for symbol table interface changes.

./src/H5F.c
./src/H5Fprivate.h
        Simpler handling of special case files: empty files and files
        with a single object.

./src/H5G.c
./src/H5Gent.c
./src/H5Gnode.c
./src/H5Gpkg.h
./src/H5Gprivate.h
./src/H5Gpublic.h
./src/H5Gshad.c         (DELETED)
./src/H5Gstab.c
./src/Makefile.in
        Removed shadows, simplifying code.  Symbol table entries are
        allowed to cache only constant meta data.  Fixed naming.

./src/H5O.c
./src/H5Oprivate.h
        Access to object headers is always done through a symbol table
        entry instead of a file address.  Added stubs for opening and
        closing object headers to be used when deletion is implemented.