Update to 0.13
    
    - New upstream release 0.13:
      - Variable::Magic added as a runtime recommendation for greater visibility
        (CPAN RT#89245)
      - Fixed broken logic in compiler detection on older perls
      - Fixed inaccurate repository metadata
    - This release by ETHER -> update source URL
    - Drop Pod Coverage patch, no longer needed
    - Update shellbang patch
    - Don't run the release tests when bootstrapping