- tweaked IDN test and checked in both Tiger results and Leopard

    - tweaked IDN test and checked in both Tiger results and Leopard

        * fast/encoding/idn-security.html: Changed test to only test lowercase "a" since the behavior for
        uppercase letters has changed in the new ICU. Also added code to detect the older ICU and expect
        different results.

        * fast/encoding/idn-security-expected.txt: Regenerated results.

        * mac/leopard/fast/encoding/idn-security-expected.txt: Copied from fast/encoding/idn-security-expected.txt.
        The modified.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@24020 268f45cc-cd09-0410-ab3c-d52691b4dbfc