FIX : omp default param could fail
ENH : use local seed + avoid warning
DOC: Replace GT/LT with angle brackets for inner product
Merge pull request #3217 from bwignall/innerprod

DOC: Replace GT/LT with angle brackets for inner product
ENH Dense pipeline support for RandomTreesEmbedding via sparse_output param
ENH: use partial sort for kneighbors selection
CLN: Fix typo
Merge pull request #3225 from bwignall/quickfix-typo

CLN: Fix typo
ENH: make trees work with very small max_features.

Trees do no longer fail if int(max_features*n_features) == 0, but use
max_features=1 if the max_features paramater was larger than 0.0

Fixes #3171.
TST skip flaky label propagation test

The optimization in 46aebf132b65e9a6c54b2747c864c6401cd5c56f broke
a test that relied on the exact ordering of k-NN in a test on a minute
dataset.
CLN: Capitalize "Gaussian" in example docstrings
Merge pull request #3176 from agramfort/omp_default

MRG : omp default param could fail
Merge pull request #3230 from bwignall/quickfix-gaussian

CLN: Capitalize "Gaussian" in example docstrings