tinymce/tinymce — pull request #428 by mattheu (2014-09-29 22:34:54+00:00)
Title: Add srcset attribute to img element schema

The srcset attribute has been settled upon and is now out in the wild in both FF and chrome, and it would be good to have this available by default in TinyMCE.

For more reference on the srcset attribute see here: http://www.w3.org/html/wg/drafts/html/master/embedded-content.html#the-img-element