ENH added carousel back on front page for testimonials
ENH better spacing on the first page
ENH testimonials img are now centered.

More spacing around button
FIX typo in testimonials

Thanks @jaquesgrobler
Polishing on "Who's using scikit-learn"
DOC: layout tweaks
DOC: bigger menu fonts
ENH more explicit name for auc + consistency for scorer, fix #2096
DOC put the narrative documentation of roc_curve and roc_auc_score in one place
FIX search and replace misstake
Website: bottom buttons
DOC: button layout tweak
Merge pull request #2348 from arjoly/deprecate-auc_score

[MRG] Fix consistency issue between scorer string and metrics function
contributors logos added to index screen footer
changed hyperlink to funding anchor - added same for the images
old footer removed for index page
removed little underscores appearing between images - caused by link added to images
TST: avoid a crash in Windows + Anaconda Py3.3

The crash is due to a numpy bug in np.load, that is called by joblib
caching. We work around it by avoiding the call to np.load
FIX integer types in Ward clustering

Use np.npy_intp, aka np.intp in Python, for all indices.
Also added mode='c' declarations where NumPy would permit
and made some small improvements to the docs and code style.
MISC: fix wrong timing in example