Reviewed by Darin Adler.

        Port the CoreFoundation version of WebCore::isCharacterSmartReplaceExempt
        for other platforms by using ICU directly.

        * GNUmakefile.am: Add SmartReplaceICU.cpp.
        * WebCore.pro: Ditto.
        * WebCoreSources.bkl: Ditto.
        * editing/SmartReplace.cpp: Don't use this empty implementation when ICU is available.
        * editing/SmartReplaceICU.cpp:
        (getSmartSet):
        (WebCore::isCharacterSmartReplaceExempt):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@29990 268f45cc-cd09-0410-ab3c-d52691b4dbfc