Execution fails with the latest gensim

[luav]

Various Word2Vec model attributes are moved to the model.wv in the latest gensim, which causes the incompatibility.

[GTmac]

What is the first gensim version that moves from model to model.wv? We may want to update requirements.txt accordingly.

[luav]

I updated the requirements.txt, it seems the new model was represented since v. 1.0.0, and definitely since 3.0.0.