Support JFastText.getSentenceVector() and come to facebookresearch/fastText:0.9.2

[khoatruongdang]

Hi Bro,
Your repository may be based on old revision of facebookresearch/fastText, and does not support JFastText.getSentenceVector()....so we should come to use facebookresearch/fastText:0.9.2 for more supported features.

Thanks