Add function to create ngrams with nltk rather than in Solr
Add function to create ngrams with nltk rather than in Solr

propublica/Capitol-Words,sunlightlabs/Capitol-Words,sunlightlabs/Capitol-Words,propublica/Capitol-Words,sunlightlabs/Capitol-Words,sunlightlabs/Capitol-Words,propublica/Capitol-Words,sunlightlabs/Capitol-Words,propublica/Capitol-Words,sunlightlabs/Capitol-Words,sunlightlabs/Capitol-Words