* Fix StringIO for Python3 tests
* Fix StringIO for Python3 tests

raphael0202/spaCy,explosion/spaCy,Gregory-Howard/spaCy,aikramer2/spaCy,oroszgy/spaCy.hu,recognai/spaCy,wbwseeker/spaCy,wbwseeker/spaCy,explosion/spaCy,wbwseeker/spaCy,oroszgy/spaCy.hu,recognai/spaCy,wbwseeker/spaCy,raphael0202/spaCy,spacy-io/spaCy,wbwseeker/spaCy,Gregory-Howard/spaCy,aikramer2/spaCy,raphael0202/spaCy,spacy-io/spaCy,explosion/spaCy,honnibal/spaCy,aikramer2/spaCy,explosion/spaCy,recognai/spaCy,raphael0202/spaCy,spacy-io/spaCy,honnibal/spaCy,explosion/spaCy,recognai/spaCy,banglakit/spaCy,pombredanne/spaCy,recognai/spaCy,Gregory-Howard/spaCy,raphael0202/spaCy,oroszgy/spaCy.hu,aikramer2/spaCy,oroszgy/spaCy.hu,Gregory-Howard/spaCy,wbwseeker/spaCy,oroszgy/spaCy.hu,Gregory-Howard/spaCy,pombredanne/spaCy,pombredanne/spaCy,spacy-io/spaCy,raphael0202/spaCy,aikramer2/spaCy,banglakit/spaCy,banglakit/spaCy,oroszgy/spaCy.hu,spacy-io/spaCy,banglakit/spaCy,banglakit/spaCy,honnibal/spaCy,recognai/spaCy,Gregory-Howard/spaCy,banglakit/spaCy,explosion/spaCy,aikramer2/spaCy,pombredanne/spaCy,spacy-io/spaCy,honnibal/spaCy