self.jsContext?.setObject(model, forKeyedSubscript: "JSModel" as (NSCopying & NSObjectProtocol)!)这段代码，无法绑定模型了。网上都是旧版本的demo，功能全都失效了。求哪位大神，来段崭新的demo
http://www.hangge.com/blog/cache/detail_1150.html