Added utility to skip tests if running on Travis
DOC optimize some PNG images, shaves off 24kB
DOC run optipng before uploading website
Merge pull request #3355 from larsmans/optipng

[MRG+1] DOC run optipng before uploading website
Fix grammar

it's should be its
Merge pull request #3357 from houbysoft/patch-1

Fix grammar
Fix labels of inliers vs outliers

At least based on what svm.OneClassSVM does in the example linked from this document, the description was wrong; labels actually assigned are 1/-1 for good/bad respectively, not 0/1.
TST fix precision failure on windows
MAINT skip joblib multiprocessing tests on travis
Merge pull request #3361 from ogrisel/travis-no-multiprocessing-joblib

[MRG] skip joblib multiprocessing tests on travis
FIX assert_array_almost_equal for windows tests
Cosmetic: correct latex formula display
DOC: write cost function of logistic regression.

I feel it important to state clearly what is the cost function of the
model because:

    * Some might want to compare their implementation against this one,
    in which case it is important to know exactly what is the form of the
    cost function

    * Furthermore since the models are quite inconsistent in terms of
    notation for the regularization parameter: some models in this
    module penalize by 1/C, others by alpha and others by alpha/2
Merge pull request #3365 from fabianp/master

DOC: write cost function of logistic regression
Link my name to my wordpress blog
Merge pull request #3366 from MechCoder/link-to-blog

FIX: My name was linked to the wrong github account
fixed typo: diriclet -> dirichlet
Merge pull request #3368 from stevetjoa/typo-diriclet

fixed typo: diriclet -> dirichlet
DOC updated installation documentation

Added Canopy and Anaconda.
Removed EPD.
Merge pull request #3369 from NelleV/install_doc

DOC updated installation documentation