make nlp work for individual dictionaries

[ClimbsRocks]

right now it only works with dataframes.

we'll probably want to move this whole block into fit:

                    col_names = self.text_columns[key].get_feature_names()

                    # Make weird characters play nice, or just ignore them :)
                    for idx, word in enumerate(col_names):
                        try:
                            col_names[idx] = str(word)
                        except:
                            col_names[idx] = 'non_ascii_word_' + str(idx)

                    col_names = ['nlp_' + key + '_' + str(word) for word in col_names]

[ClimbsRocks]

done