results_ --> cv_results_; "test_mean_score" --> "mean_test_score" et al.

...utorial/text_analytics/solutions/exercise_02_sentiment.py

doc/tutorial/text_analytics/working_with_text_data.rst

doc/whats_new.rst

examples/model_selection/grid_search_digits.py

examples/model_selection/randomized_search.py

examples/plot_compare_reduction.py

examples/svm/plot_rbf_parameters.py

examples/svm/plot_svm_scale_c.py

sklearn/model_selection/_search.py

sklearn/model_selection/tests/test_search.py