Update to 1.47
    
    - New upstream release 1.47
      - fixed overlong lines and spelling errors in pod
      - fixed extra "garbage" files in 1.46 tarball
      - fixed incorrect fail reports on some 64 bit platforms
      - fix to avoid FAIL reports from cpantesters with missing openssl
      - use my_snprintf from ppport.h to prevent link failures with perl 5.8 and
        earlier when compiled with MSVC