hdf5_ep

[svn-r6632] Purpose:
    Bug fix

Description:
    This fixes a bug in the low-level metadata caching code in the library
which could possibly lose metadata during file I/O when a lot of objects are
inserted into a group.

    This also fixes a couple of (similar) fencepost bugs in the B-tree
deletion code.

Solution:
    For the metadata bug - call the low-level driver's 'write' routine instead
of H5FD_write.

    For the B-tree bug - include the correct number of keys.

Platforms tested:
    FreeBSD 4.8 (sleipnir) w/C++
    Linux 2.4 (burrwhite) w/FORTRAN
    Solaris 2.7 (arabica) w/FORTRAN
    IRIX64 6.5 (modi4) w/FORTRAN & parallel

    (h5committest is still not working for me on burrwhite)

Misc. update: