title: Future warning skLearn
body: <blockquote>
    <p>Library/Python/2.7/lib/python/site-packages/sklearn/linear_model/logistic.py:433:
    FutureWarning: Default solver will be changed to 'lbfgs' in 0.22.
    Specify a solver to silence this warning.   FutureWarning)</p>
  </blockquote>