title: Adding words to scikit-learn's CountVectorizer's stop list
body: <p>Scikit-learn's <a href="http://scikit-learn.org/stable/modules/generated/sklearn.feature_extraction.text.CountVectorizer.html">CountVectorizer</a> class lets you pass a string 'english' to the argument stop_words.  I want to add some things to this predefined list.  Can anyone tell me how to do this?  </p>