DOC mistake in comment

Didn't re-run Cython as this won't change line numbers etc.
Modified the confusion matrix example: included a normalized matrix, changed the colors and added class labels.
Merge pull request #3454 from ldirer/confusion_matrix_example

[MRG] Modified the confusion matrix example
DOC fix doc errors in utils.testing
TST stabilize check_transformer_n_iter
DOC fix formatting of attributes etc. in docstrings
converting to setting coef after the fit has been made
Typo

"In particularly" -> "In particular,"
putting const on pointer arguments
FIX revert changes introduced by mistake in previous commit

If the dataset is too small, stratified k-fold CV used
internally by some classifiers such as LogisticRegressionCV
raises a warning.
Merge pull request #3492 from furukama/patch-2

Typo
MAINT: Effectively remove deprecated parameters
DOC fix styling of See Also sections
DOC fix styling of method signatures
DOC: added Machinalis testimonial
COSMIT smipler & more robust check in test_kfold_valueerrors

Using assert_warn_message internally cleans the warning
registries making this test more robust to changes in other tests.
DOC fix see also references
DOC move Attributes section to after Parameters and style likewise
Merge pull request #3491 from ogrisel/fix-warning-test-cross-val

[MRG] TST unstable warning test in test_kfold_valueerrors
DOC fix see also reference