Update to 0.049
    
    - New upstream release 0.049
      - Added 'subsumes' method
      - The 'chomp' option for 'lines' will remove any end-of-line sequences fully
        instead of just chomping the last character
      - Fixed locking test on AIX
      - Revised locking tests for portability again: locks are now tested from a
        separate process
      - The 'flock' package will no longer indexed by PAUSE
      - Hides warnings and fixes possible fatal errors from pure-perl Cwd,
        particularly on MSWin32
      - Generates filename for atomic writes independent of thread-ID, which fixes
        crashing bug on Win32 when fork() is called