Humidity Sensor shows as "Not Supported" in Home App. 
Humidity Sensor shows as "Not Supported" in Home App. I was able to get it working with `homebridge-aqara` plugin. 

iOS: iOS 11 Public Beta 2
homebridge: 0.4.22
homebridge-mi-aqara: 0.3.3

![img_86737eb37bec-1](https://user-images.githubusercontent.com/510089/28301608-d3d6f650-6b3c-11e7-94ff-be6eee64045d.jpeg)
![img_86737eb37bec-2](https://user-images.githubusercontent.com/510089/28301609-d3d7c86e-6b3c-11e7-940c-11a25c30198e.jpeg)
