CloudMade/Leaflet — pull request #586 by Mithgol (2012-03-16 05:56:30+00:00)
Title: Detect retina displays and adjust tileSize accordingly

Should fix CloudMade/Leaflet#582.

Related external links:

* [Detect retina displays with javascript](http://briancray.com/2011/05/05/detect-retina-displays-with-javascript/) — Brian Cray, May 5, 2011.

* [Адаптируем графику под Retina экран](http://habrahabr.ru/post/139682/) — [Егор Хмелёв](http://habrahabr.ru/users/hmelyoff/), 10 марта 2012 г.