hdf5_ep

[svn-r9925] Purpose:
Bug Fix

Description:
Permanent fix for the incompatibilities between h5diff and h5repack.

Solution:
h5diff now contains the code to run both parallel and serial diffs.
Depending on how the binary is called, it will run either the serial or
the parallel versions respectively.


Platforms tested:
heping(serial + parallel), copper.


Misc. update: