TODO.txt

# Utiliser Flex (ou pas)
https://css-tricks.com/snippets/css/a-guide-to-flexbox/
http://bennettfeely.com/flexplorer/
http://gedd.ski/post/the-difference-between-width-and-flex-basis/

# Mettre les images en responsive (ou pas)
https://github.com/mmistakes/made-mistakes-jekyll/blob/master/gulp/tasks/images.js
https://github.com/wildlyinaccurate/jekyll-responsive-image
https://github.com/netlify/jekyll-srcset

# Prendre automatiquement des screenshot
http://phantomjs.org/
http://casperjs.org/

https://codepen.io/nicoptere/pen/kkdQzb
https://zeit.co/now

# HTML-proofer (tests HTML)
https://github.com/gjtorikian/html-proofer

# Handle errors
https://www.npmjs.com/package/gulp-prettyerror


https://openedx.atlassian.net/wiki/display/DOC/Open+edX+Releases
open-release/ficus.2
http://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/latest/set_up_course/setting_pacing.html#setting-course-pacing


# Lazy Load
https://toddmotto.com/echo-js-simple-javascript-image-lazy-loading/
https://github.com/toddmotto/echo/blob/master/dist/echo.js
https://github.com/craigbuckler/progressive-image.js
https://github.com/verlok/lazyload

# En cours
https://codepen.io/rposbo/pen/ONmgVG
https://www.robinosborne.co.uk/2016/05/16/lazy-loading-images-dont-rely-on-javascript/
https://www.sitepoint.com/five-techniques-lazy-load-images-website-performance/ # §2
https://www.webpagetest.org/result/170630_S4_J02/1/details/#waterfall_view_step1
https://webspeedtest.cloudinary.com/results/170630_S4_J02 ==> Passage en webm à faire