Empty word with high count when using pretrained vectors

[gartentrio]

Moving a word in getInputMatrixFromFile() and then adding it to the dictionary leads to an empty word with count of vocabulary size.

std::string word;
in >> word;
words.push_back(std::move(word));
dict_->add(word);

[tshev]

Thank you. Good catch.

[tshev]

Fixed: #6