PEP8 and allow non-bool truth values in CD
BUG + ENH: removal of components in kernel PCA
Merge pull request #1758 from larsmans/kernelpca-fix

MRG removal of components in kernel PCA
DOC some sphinx / rst fixes
MISC minor fixes in examples
DOC FIX column span alignment problem in NMF ^^
P3K make feature_extraction.text work

All tests pass with Py2 and Py3.
ENH - 3x speedup in the isotonic regression
Fix comment: returns fbeta_score, not f1_score
BUG failing doctest

My laptop didn't catch this, so the explicit np.int64 is probably a good idea.
COSMIT typo
DOC IsotonicRegression wasn't in the changelog at all
P3K all of feature_extraction passes tests on Py2 and 3
DOC clarify column ordering in SVC scores

http://stackoverflow.com/q/15324593/166749
ENH add training score to GridSearchCV.cv_scores_
add docstring for GridSearchCV, RandomizedSearchCV and fit_grid_point. In "fit_grid_point" I used test_score rather than validation_score, as the split is given to the function.
rbf svm grid search example now also shows training scores - which illustrates overfitting for high C, and training/prediction times... which pasically serve to illustrate that this is possible. Maybe random forests would be better to evaluate training times?