Reviewed by Oliver Hunt.

        Removed WebCoreSettings, cleaned up WebCore::Settings.

        * WebCore.exp: Exported Settings for use by WebKit, removed WebCoreSettings class.
        
        * WebCore.xcodeproj/project.pbxproj: Removed WebCoreSetttings.h/.mm.
        Added Settings.cpp.

        * page/Frame.cpp: Removed cruft that duplicated Settings data. Callers now call
        through to Settings to get Settings data.

        * page/Page.cpp: Added Settings data member, to replace the one that WebView
        used to hold.

        * page/Settings.cpp: Added.
        * page/Settings.h:
            - Renamed all functions to match WebKit API. Renamed all variables to
            match functions. Favorite old name: "isPluginsEnabled."
            - Moved EditableLinkBehavior outside of the class. Having it inside
            just made it harder to type.
            - Merged in old WebCoreSettings functionality, like guarding against re-setting
            to the same value, and making sure to update page layout.
            - Paired setters and getters, putting setters first.            

WebKit:

        Reviewed by Oliver Hunt.
        
        Removed WebCoreSettings, cleaned up WebCore::Settings.

        * WebView/WebFrame.mm: Added helper functions for converting between
        WebKitEditableLinkBehavior and WebCore::EditableLinkBehavior. I'm not sure
        that this is the best place for these functions, but it's where all the
        other functions like them reside.
        (core):
        (kit):
        * WebView/WebFrameInternal.h:

        * WebView/WebView.mm: Removed uses of WebCoreSettings. Replaced with direct
        use of underlying page's settings.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@18417 268f45cc-cd09-0410-ab3c-d52691b4dbfc