- add perl_default_filter
    - we're no longer noarch
    - auto-update to 0.47 (by cpan-spec-update 0.01)
    - added a new br on perl(Devel::PPPort)
    - added a new br on perl(ExtUtils::ParseXS)
    - added a new br on perl(XSLoader) (version 0.1)
    - added a new req on perl(Scalar::Util) (version 1.14)
    - added a new req on perl(XSLoader) (version 0.1)