hdf5_ep

[svn-r6563] Purpose:
added test script for h5diff
code cleaning for alpha release
makefile now generates the h5difftst.c program that generates 2 .h5 files for testing

Description:
the .sh script runs several runs of h5diff and compares the output
with a predifined output located in /tools/testfiles (.txt files)
righ now it has only one test


Solution:

Platforms tested:
linux (other platforms later , ok !? )

Misc. update: