https://addyosmani.com/resources/essentialjsdesignpatterns/book/
https://javascriptweblog.wordpress.com/2011/05/31/a-fresh-look-at-javascript-mixins/
http://justinfagnani.com/2015/12/21/real-mixins-with-javascript-classes/
https://www.safaribooksonline.com/library/view/learning-javascript-design/9781449334840/ch09s13.html
http://raganwald.com/2015/12/28/mixins-subclass-factories-and-method-advice.html
https://medium.com/@dan_abramov/mixins-are-dead-long-live-higher-order-components-94a0d2f9e750#.kwmnvjqds
https://medium.com/@benastontweet/mixins-in-javascript-700ec81f5e5c#.e5fmae6s8
https://benfrain.com/creating-and-referencing-javascript-mixins-and-variables-with-postcss/
https://lostechies.com/derickbailey/2012/10/07/javascript-mixins-beyond-simple-object-extension/
http://obscurejavascript.tumblr.com/post/145467239320/javascript-mixins
JavaScript - Mixins
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