 let WMFAppLaunchDateKey = "WMFAppLaunchDateKey"
 let WMFAppBecomeActiveDateKey = "WMFAppBecomeActiveDateKey"
 let WMFAppResignActiveDateKey = "WMFAppResignActiveDateKey"
+let WMFOpenArticleURLKey = "WMFOpenArticleURLKey"
+let WMFAppSiteKey = "Domain"
+let WMFSearchURLKey = "WMFSearchURLKey"
+
+//Legacy Keys
 let WMFOpenArticleTitleKey = "WMFOpenArticleTitleKey"
-let WMFAppSiteKey = "Domain"
 let WMFSearchLanguageKey = "WMFSearchLanguageKey"
 
 

    }
    
    public func wmf_openArticleURL() -> NSURL? {
        return self.URLForKey(WMFOpenArticleTitleKey)
    }
    
    public func wmf_setOpenArticleURL(url: NSURL?) {

        self.synchronize()
    }

    public func wmf_setReadingFontSize(fontSize: NSNumber) {
        self.setObject(fontSize, forKey: "ReadingFontSize")
        self.synchronize()
