Update to 4.13:

4.13 Wed Sep 01 2010: - Balint Szilakszi <szbalint at cpan.org>

    - Fixed WWW::Curl::Form (again, formadd and formaddfile working now).
    - Made constant constant handling more robust and added tests [Fuji, Goro].
    - Modernized *.pm and AUTOLOAD now throws an error on unknown method calls [Fuji, Goro].
    - Fixed code depending on CURLINFO_SLIST to be optional [Fuji, Goro].

(wiz)