hdf5_ep

[svn-r1424] Pulled CVS checkout codes to form a new partition of checkout that
does cvs checkout only.  Moved the "make distclean" code from the "test"
to the "release" part.  (A distclean should definitely be applied as
part of the release command.  Also, test might fail for other silly
reason, like AFS temporary out.  The distclean blew away the option
of trying the tests by hand.