Support python3.7, TensorFlow1.14, numpy 1.17.2, Model download link

[maxy0524]

https://github.com/79837383/image_captioning
I modified the code, support python3.6, python3.7,TensorFlow1.8 TensorFlow1.12 TensorFlow1.13 TensorFlow1.14, numpy 1.12 or newer, and Baidu disk download link of datasets and models if you like.

[maxy0524]

Thank you very much Guoming Wang