SAK-29648 Added high-res fontawesome icons. Unfortunately the meaning of the icon will not be understood by screen readers.
The editor plugin is from http://ckeditor.com/addon/fontawesome
It needs to implement Font Awesome's accessible standards, outlined here http://fontawesome.io/accessibility/
When alernative text is added in a skip class, it will successfully only be read by a screen reader (Example http://www.screencast.com/t/BCNM4Sp3Dou)