Log Message:
Update to 1.13:

1.13    2014-06-28

- Fix my brain damage so that this code compiles with Perl 5.14.

1.12    2014-06-27

- Temporarily skip tests that use Readonly with Readonly 1.50+ until various
  bugs are worked out in Readonly.

1.11    2014-06-26

- Fixes for MSVC compilation. Patch by J.R. Mash. PR #1.