- Enable ppc64, s390 and s390x.
    - Add check for jars at the end of prep.
    - Fix patch for rh #162177 (square brackets patch).
    - Fix swt symlinks rh #194500.
    - Add versionless pde.build symlink.
    - Rename efj-wrapper.sh to efj.sh.in.
    - Re-pack all zips after the build to ensure that zips have the same md5sum
        across arch re-builds. This is needed to avoid multilib conflicts.