Use delete[] (not delete) operator to delete array.

        * kjs/property_map.cpp:

WebBrowser
        Use cleaned up API to enable/disable page cache.

        * Debug/DebugUtilities.m:
        (-[BrowserDocument toggleBackForwardEnabled:]):

WebCore
        Cleanup up leaking objects in page cache.

        * kwq/KWQKHTMLPart.mm:
        (KWQKHTMLPart::openURLFromPageCache):
        * kwq/WebCoreBridge.mm:
        (-[KWQPageState initWithDocument:DOM::URL:windowProperties:KJS::locationProperties:KJS::]):
        (-[KWQPageState dealloc]):

WebKit
        Cleanup leaking objects in page cache.
        Cleaned up API a bit.

        * History.subproj/WebBackForwardList.h:
        * History.subproj/WebBackForwardList.m:
        (-[WebBackForwardList dealloc]):
        (+[WebBackForwardList setUsesPageCache:]):
        (+[WebBackForwardList usesPageCache]):
        (+[WebBackForwardList setPageCacheSize:]):
        (+[WebBackForwardList pageCacheSize]):
        * History.subproj/WebHistoryItem.h:
        * History.subproj/WebHistoryItem.m:
        (-[WebHistoryItem setHasPageCache:]):
        * WebCoreSupport.subproj/WebBridge.m:
        (-[WebBridge saveDocumentToPageCache:]):
        * WebKit.exp:
        * WebView.subproj/WebFramePrivate.m:
        (-[WebFrame _canCachePage]):
        (-[WebFrame _purgePageCache]):
        (-[WebFrame _setState:]):
        (-[WebFrame _continueLoadRequestAfterNavigationPolicy:request:]):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2874 268f45cc-cd09-0410-ab3c-d52691b4dbfc