Bug 884075 - Make button toast listeners per toast. r=margaret
Bug 884075 - Add a method to get drawables from urls in BitmapUtils. r=margaret
Bug 884075 - Use new getDrawable method in ButtonToasts. r=margaret
Bug 884075 - Include a reason when hiding a toast. r=margaret
Bug 884075 - Add a javascript api for button toasts. r=margaret