Add categorical_features option to OneHotEncoder.
Support both masks and arrays of indices.
Typo.
Rename _apply_transform to _transform_selected and make it a function
rather than a method.
Merge branch 'master' of github.com:scikit-learn/scikit-learn into select_categorical
Address @jnothman's comments.
Merge pull request #2027 from mblondel/select_categorical

ENH Non-categorical variables in OneHotEncoder