MAINT skip tests that require large datadownload under travis
MAINT add docstring to explain the motivation of the fixture
Merge pull request #3333 from ogrisel/maint-skip-download-tests

[MRG+2] MAINT skip tests that require large data download under travis
Typo
MAINT Include binary_tree.pxi in source distribution

Fixes #3331.
ENH Add partial_fit to GaussianNB

Uses Chan/Golub/LeVeque update for model parameters. Does not implement
sample weighting.
DOC what's new: GaussianNB.partial_fit + typo in comment
Update Sphinx docs for GaussianNB partial_fit
Merge pull request #3343 from ihaque/doc_partial_fit

Update Sphinx docs for GaussianNB partial_fit
Remove duplicate GaussianNB.fit() code

This code is substantially duplicated by partial_fit(), so just call
partial_fit().
Preserve public API
docstring
Merge pull request #3344 from ihaque/remove_dup_fit

Remove duplicate GaussianNB.fit() code
DOC double backticks for fixed-width (code) font

Fixes #3337. Also other minor fixes while I was at it.
TST crank up preprocessing tests to 99% coverage

Fixes #3347. (nosetests reports no missing lines, so 99% seems to
be a roundoff error, or a hint that 100% coverage is impossible :p)
FIX Gaussian KDE should return array, not scalar

Fixes #3269.
COSMIT use explicit RandomState in KDE tests