磁贴 & 磁贴通知
磁贴通知队列 Windows.UI.Notifications.TileUpdateManager.CreateTileUpdaterForApplication().Clear();参考实例:http://code.msdn.microsoft.com/windowsapps/app-tiles-and-badges-sample-5fc49148/
Windows.UI.Notifications.TileUpdateManager.CreateTileUpdaterForApplication().Clear();