LingJunHou

官方给出的设置有问题，请参考http://www.fiveminutewatchkit.com/blog/2015/6/9/how-to-disable-app-transport-security

I install [CocoaMQTT](https://github.com/emqx/CocoaMQTT) 2.0.2 use cocoapods. and the file CocoaMQTT-Swift.h in framework not have objective-c api