Log Message:
Update to 0.051

Upstream changes:
0.051     2013-12-20 07:34:14 America/New_York

    [FIXED]

    - Fixed file order bug in the new test file

0.050     2013-12-20 07:27:20 America/New_York

    [FIXED]

    - Recursive iteration won't throw an exception if a directory is
      removed or unreadable during iteration.

0.049     2013-12-12 00:48:01 America/New_York

    [FIXED]

    - Generates filename for atomic writes independent of thread-ID.
      Fixes crashing bug on Win32 when fork() is called.

0.048     2013-12-11 21:56:23 America/New_York

    [ADDED]

    - Added 'subsumes' method

    [CHANGED]

    - The 'chomp' option for 'lines' will remove any end-of-line sequences
      fully instead of just chomping the last character

    - The 'flock' package will no longer indexed by PAUSE

    [FIXED]

    - Hides warnings and fixes possible fatal errors from pure-perl Cwd,
      particularly on MSWin32