* tag '0.19.1': (117 commits)
  TST Improve SelectFromModel tests (scikit-learn#9733)
  Name in what's new
  [MRG+1] Raise error when SparseSeries is passed into classification metrics (scikit-learn#7373)
  Fix LogisticRegressionCV default solver value in docstring (scikit-learn#9962)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  DOC fix a typo (scikit-learn#9892)
  [MRG+1] Ledoit-Wolf behavior explanation (scikit-learn#9500)
  [MRG+1] Fix typos in documentation (scikit-learn#9878)
  DOC: Use setattr(self, ...) instead of self.setattr(...) (scikit-learn#9866)
  DOC Removed a duplicate occurrence of a word in 'sklearn.neighbors.KNeighborsRegressor' docs (scikit-learn#9862)
  FIX docstring of negative_outlier_factor_ in LOF (scikit-learn#9809)
  [MRG+1] Fix scikit-learn#9743: Adding parameter information to docstring. (scikit-learn#9757)
  DOC: fix docstring of Imputer.fit (scikit-learn#9769)
  various minor spelling tweaks (scikit-learn#9783)
  MAINT comment on apparent inconsistency
  [MRG+1] DOC fix headers level in cross_validation.rst (scikit-learn#9679)
  Fix mailmap format (scikit-learn#9620)
  DOC Fix typos (scikit-learn#9577)
  Typo (scikit-learn#9571)
  ...

* releases: (117 commits)
  TST Improve SelectFromModel tests (scikit-learn#9733)
  Name in what's new
  [MRG+1] Raise error when SparseSeries is passed into classification metrics (scikit-learn#7373)
  Fix LogisticRegressionCV default solver value in docstring (scikit-learn#9962)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  DOC fix a typo (scikit-learn#9892)
  [MRG+1] Ledoit-Wolf behavior explanation (scikit-learn#9500)
  [MRG+1] Fix typos in documentation (scikit-learn#9878)
  DOC: Use setattr(self, ...) instead of self.setattr(...) (scikit-learn#9866)
  DOC Removed a duplicate occurrence of a word in 'sklearn.neighbors.KNeighborsRegressor' docs (scikit-learn#9862)
  FIX docstring of negative_outlier_factor_ in LOF (scikit-learn#9809)
  [MRG+1] Fix scikit-learn#9743: Adding parameter information to docstring. (scikit-learn#9757)
  DOC: fix docstring of Imputer.fit (scikit-learn#9769)
  various minor spelling tweaks (scikit-learn#9783)
  MAINT comment on apparent inconsistency
  [MRG+1] DOC fix headers level in cross_validation.rst (scikit-learn#9679)
  Fix mailmap format (scikit-learn#9620)
  DOC Fix typos (scikit-learn#9577)
  Typo (scikit-learn#9571)
  ...

* dfsg: (117 commits)
  TST Improve SelectFromModel tests (scikit-learn#9733)
  Name in what's new
  [MRG+1] Raise error when SparseSeries is passed into classification metrics (scikit-learn#7373)
  Fix LogisticRegressionCV default solver value in docstring (scikit-learn#9962)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  [MRG+1] DOC fix sign in GBRT mathematical formulation (scikit-learn#9885)
  DOC fix a typo (scikit-learn#9892)
  [MRG+1] Ledoit-Wolf behavior explanation (scikit-learn#9500)
  [MRG+1] Fix typos in documentation (scikit-learn#9878)
  DOC: Use setattr(self, ...) instead of self.setattr(...) (scikit-learn#9866)
  DOC Removed a duplicate occurrence of a word in 'sklearn.neighbors.KNeighborsRegressor' docs (scikit-learn#9862)
  FIX docstring of negative_outlier_factor_ in LOF (scikit-learn#9809)
  [MRG+1] Fix scikit-learn#9743: Adding parameter information to docstring. (scikit-learn#9757)
  DOC: fix docstring of Imputer.fit (scikit-learn#9769)
  various minor spelling tweaks (scikit-learn#9783)
  MAINT comment on apparent inconsistency
  [MRG+1] DOC fix headers level in cross_validation.rst (scikit-learn#9679)
  Fix mailmap format (scikit-learn#9620)
  DOC Fix typos (scikit-learn#9577)
  Typo (scikit-learn#9571)
  ...