ENH added an orange cite us button on the front page
FIX cite us buttong made blue bar span too much
DOC added testimonials

from INRIA and evernote
FIX forgot evernote's logo
ENH added telecom to the testimonials
DOC updated evernote's testimonials
ENH added AWeber's testimonial
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