Update to 0.13
    
    - New upstream release 0.13
      - Fix tests failing on 5.6.x due to differing DESTROY semantics
      - Excise superfluous local($@) call - 7% speedup
      - Fix broken URLs (CPAN RT#55659)
      - Proper exception on erroneous usage of bare catch/finally (CPAN RT#81070)
      - Proper exception on erroneous use of multiple catch{} blocks
      - Clarify exception occuring on unterminated try block (CPAN RT#75712)
      - Fix the prototypes shown in docs to match code (CPAN RT#79590)
      - Warn loudly on exceptions in finally() blocks
      - dzilify
    - Ship upstream LICENSE and README files
    - Classify buildreqs by usage
    - Add buildreqs for extra tests and explicitly run them