DOM and Styles - use SVG for the animation icons instead of icon fonts

Goodbye icon fonts, you have been replaced with svg.

* Remove font files
* Add in SVG files
* Change CSS to take into account these changes

Font license: [SIL](http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL).

@addyosmani mentioned he'll be able to handle a merge with this and the CL he has submitted.