Support loading fasttext model from custom file

[YuhengHuang42]

Add two simple parameters to class FastText, making it possible to load fasttext model from custom file.

[YuhengHuang42]

Related to issue 61

[codecov-commenter]

Codecov Report

Merging #102 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #102   +/-   ##
=======================================
  Coverage   94.41%   94.42%           
=======================================
  Files          64       64           
  Lines        1611     1613    +2     
=======================================
+ Hits         1521     1523    +2     
  Misses         90       90           

Impacted Files	Coverage Δ
torchnlp/metrics/__init__.py	100.00% <ø> (ø)
torchnlp/word_to_vector/fast_text.py	100.00% <100.00%> (ø)

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[PetrochukM]

Hi! Thanks for your contribution.

It looks like the parameters introduced are directly passed into PretrainedWordVectors. Should we just use PretrainedWordVectors instead of FastText to solve the issue?

[YuhengHuang42]

Hi! Thanks for your contribution.

It looks like the parameters introduced are directly passed into PretrainedWordVectors. Should we just use PretrainedWordVectors instead of FastText to solve the issue?

Yes, this is a good idea. It is more suitable for the problem. I didn't understand the related class thoroughly before.

[PetrochukM]

Would you like to change PretrainedWordVectors to be public? Or would you like me to?

[multinucliated]

How do I load this in pytorch or pytorch-nlp crawl-300d-2M-subword/crawl-300d-2M-subword.bin ?

Is this feature completed or still in progress ?

[YuhengHuang42]

How do I load this in pytorch or pytorch-nlp crawl-300d-2M-subword/crawl-300d-2M-subword.bin ?

Is this feature completed or still in progress ?

If I understand correctly, it should be done by just passing the name of your file to the "name" parameter.

However, the suggestion from PetrochukM is more appropriate, if you have time you could follow his suggestion and fix the issue. Thanks!