- Remove separate macros for each tarball version - upstream now releases
        all tarballs with the same version number
    - Add virtual Provides for shorewall(firewall) to shorewall, shorewall-lite
        and shorewall6-lite, and a Requires shorewall(firewall) to
        shorewall-init. Note that shorewall6 Requires shorewall, so virtual
        provides not needed there