Update to 1.11
    
    - New upstream release 1.11:
      - Avoid warning while adding pipe (CPAN RT#16259, CPAN RT#60068)
      - Add EWOULDBLOCK and non-blocking mode for windows (CPAN RT#23982)
      - Fix typo in documentation (CPAN RT#21085)
      - Avoid shutdown after close (CPAN RT#5885, CPAN RT#5715)
      - Use length of outbuf, not exists to see if it is empty
      - Turn "use warnings" on
    - This release by MARKOV -> update source URL
    - Use %{_fixperms} rather than our own chmod incantation
    - Tidy up %summary and %description