Update to 1.12

Upstream changes:
- 1.12.B55J2qn Thu May 5 19:02:52:49 2011
        * made "1.0" float binarize as float again, rather than just "1" int

        * cleaned up POD && fixed EXPORTED CONSTANTS heads blocking together

    - 1.10.B52FpLx Mon May 2 15:51:21:59 2011
        * added tests for undefined non-standard XML declaration to suppress
        warnings

    - 1.8.B2AMvdl Thu Feb 10 22:57:39:47 2011
        * aligned .t code

        * added test for newline before -r to try to resolve:
        HTTPS://RT.CPAN.Org/Ticket/Display.html?id=65471 (Thanks, Leandro.)

        * fixed off-by-one error when new gets a readable (non-newline)
        filename (that's not "filename" without a pre-'filename' param) to
        resolve: HTTPS://RT.CPAN.Org/Ticket/Display.html?id=65151 (Thanks,
        Simone.)

(wen)