Bring core up to version-0.9902

The attached patch bring the core Perl version code (including a fairly
significant leak when run in a tight loop) up to parity with CPAN
0.9902.  This deals with all open issues except:

   https://rt.cpan.org/Ticket/Display.html?id=81294

which I am having a hard time modeling.

John

Signed-off-by: Chris 'BinGOs' Williams <chris@bingosnet.co.uk>
Update perlfaq to CPAN version 5.0150042

  [DELTA]

  5.0150042 Wed  6 Mar 2013 14:37:08 +0100
    * Fix dodgy link as reports in #114260 of cpan RT (ranguard)
    * Hex typo (Martin Becker)
    * Typo (joaquinferrero)