* tag '0.20rc1': (1109 commits)
  MNT rc version
  DOC Release dates for 0.20 (scikit-learn#11838)
  DOC Fix: require n_splits > 1 in TimeSeriesSplit (scikit-learn#11937)
  FIX xfail for MacOS LogisticRegressionCV stability (scikit-learn#11936)
  MNT: Use GEMV in enet_coordinate_descent (Pt. 1) (scikit-learn#11896)
  [MRG] TST/FIX stop optics reachability failure on 32bit (scikit-learn#11916)
  ENH add multi_class='auto' for LogisticRegression, default from 0.22; default solver will be 'lbfgs' (scikit-learn#11905)
  MAINT Fix test_logistic::test_dtype_match failure on 32 bit arch (scikit-learn#11899)
  DOC Updated link to Laurens van der Maaten's home page (scikit-learn#11907)
  DOC Remove stray backtick in /doc/modules/feature_extraction.rst (scikit-learn#11910)
  Deprecate min_samples_leaf and min_weight_fraction_leaf (scikit-learn#11870)
  MNT modify test_sparse_oneclasssvm to be parametrized (scikit-learn#11894)
  EXA set figure size to avoid overlaps (scikit-learn#11889)
  MRG/REL fixes /skips for 32bit tests (scikit-learn#11879)
  add durations=20 to makefile to show test runtimes locally (scikit-learn#11147)
  DOC loss='l2' is no longer accpeted in l1_min_c
  DOC add note about brute force nearest neighbors for string data (scikit-learn#11884)
  DOC Change sign of energy in RBM (scikit-learn#11156)
  RFC try to warn on iid less often (scikit-learn#11613)
  DOC reduce plot_gpr_prior_posterior.py warnings(scikit-learn#11664)
  ...

* releases: (1109 commits)
  MNT rc version
  DOC Release dates for 0.20 (scikit-learn#11838)
  DOC Fix: require n_splits > 1 in TimeSeriesSplit (scikit-learn#11937)
  FIX xfail for MacOS LogisticRegressionCV stability (scikit-learn#11936)
  MNT: Use GEMV in enet_coordinate_descent (Pt. 1) (scikit-learn#11896)
  [MRG] TST/FIX stop optics reachability failure on 32bit (scikit-learn#11916)
  ENH add multi_class='auto' for LogisticRegression, default from 0.22; default solver will be 'lbfgs' (scikit-learn#11905)
  MAINT Fix test_logistic::test_dtype_match failure on 32 bit arch (scikit-learn#11899)
  DOC Updated link to Laurens van der Maaten's home page (scikit-learn#11907)
  DOC Remove stray backtick in /doc/modules/feature_extraction.rst (scikit-learn#11910)
  Deprecate min_samples_leaf and min_weight_fraction_leaf (scikit-learn#11870)
  MNT modify test_sparse_oneclasssvm to be parametrized (scikit-learn#11894)
  EXA set figure size to avoid overlaps (scikit-learn#11889)
  MRG/REL fixes /skips for 32bit tests (scikit-learn#11879)
  add durations=20 to makefile to show test runtimes locally (scikit-learn#11147)
  DOC loss='l2' is no longer accpeted in l1_min_c
  DOC add note about brute force nearest neighbors for string data (scikit-learn#11884)
  DOC Change sign of energy in RBM (scikit-learn#11156)
  RFC try to warn on iid less often (scikit-learn#11613)
  DOC reduce plot_gpr_prior_posterior.py warnings(scikit-learn#11664)
  ...

* dfsg: (1109 commits)
  MNT rc version
  DOC Release dates for 0.20 (scikit-learn#11838)
  DOC Fix: require n_splits > 1 in TimeSeriesSplit (scikit-learn#11937)
  FIX xfail for MacOS LogisticRegressionCV stability (scikit-learn#11936)
  MNT: Use GEMV in enet_coordinate_descent (Pt. 1) (scikit-learn#11896)
  [MRG] TST/FIX stop optics reachability failure on 32bit (scikit-learn#11916)
  ENH add multi_class='auto' for LogisticRegression, default from 0.22; default solver will be 'lbfgs' (scikit-learn#11905)
  MAINT Fix test_logistic::test_dtype_match failure on 32 bit arch (scikit-learn#11899)
  DOC Updated link to Laurens van der Maaten's home page (scikit-learn#11907)
  DOC Remove stray backtick in /doc/modules/feature_extraction.rst (scikit-learn#11910)
  Deprecate min_samples_leaf and min_weight_fraction_leaf (scikit-learn#11870)
  MNT modify test_sparse_oneclasssvm to be parametrized (scikit-learn#11894)
  EXA set figure size to avoid overlaps (scikit-learn#11889)
  MRG/REL fixes /skips for 32bit tests (scikit-learn#11879)
  add durations=20 to makefile to show test runtimes locally (scikit-learn#11147)
  DOC loss='l2' is no longer accpeted in l1_min_c
  DOC add note about brute force nearest neighbors for string data (scikit-learn#11884)
  DOC Change sign of energy in RBM (scikit-learn#11156)
  RFC try to warn on iid less often (scikit-learn#11613)
  DOC reduce plot_gpr_prior_posterior.py warnings(scikit-learn#11664)
  ...