vchoi_fork

[svn-r8869] Purpose:
h5repack changes

Description:
there were some requests to change some minor h5repack features
h5repack only made a warning about a non available filter in verbose mode ( -v )
without -v it kept silent, and users sometimes missed this warning

the request was that it should print this warning always. so, the new format, is e.g

./h5repack -i test_szip.h5 -o out.h5
Warning: dataset </dset_szip> cannot be read, SZIP filter is not available


due to this, and to avoid a lot of these messages in the shell test script, I modified
the script h5repack.sh so that it detects the presence of all filters in the environment
(previously it only detected SZIP)
the test files were also divided in more files , to make the script code easier to
follow


Solution:

Platforms tested:
linux
AIX (no szip)
solaris (no szip, no gzip )

Misc. update: