Update CPAN-Meta to CPAN version 2.132140

  [DELTA]

2.132140  2013-08-02 11:54:17 America/New_York

  [DOCUMENTATION]

  - Fixed some typos in CPAN::Meta::Spec

  [OTHER]

  - migrated repository to Perl-Toolchain-Gang organization on Github and
    updated metadata accordingly
Add note about regenerating META files when updating CPAN-Meta