* update PaddleNLP  lexical_analysis for Release/1.6 (#3664)

* update for paddle 1.6

* update optimize op in paddle 1.6

* fix ernie based in paddle 1.6

* fix coding for windows

* update downloads.py (#3672)

* Fix infer bug on Release/1.6  

* fix bug on ernie based inferring

* replace open with io.open to be compatible with windows (#3707)

* update README.md

* update PaddleNLP emotion_detection and ernie for Release/1.6 (#3608)

* emotion-detection => 1.6

* ERNIE => 1.6

* [PaddleNLP] update emotion_detection readme

* [PaddleNLP] emotion_detection add download.py (#3649)

* emotion-detection => 1.6

* ERNIE => 1.6

* [PaddleNLP] update emotion_detection readme

* [PaddleNLP] emotion_detection add download.py for windows user

* [PaddleNLP] fix emotion_detection open problem, add paddlehub version (#3706)

* update emotion-detection readme and fix open problem

* fix ernie

* update code for argparser

* add inference_model

* fix inference_model

* update create model for inference

* fix model nets conflict with Senta

* update readme

* update

* update

* update

* fix run_ernie.sh

* Update README.md