figure img-fluid doesn't work in IE and Firefox

Created by: jvanderkroon

http://v4-alpha.getbootstrap.com/content/figures/

The diplay:inline-block on the .figure creates a bug in IE11 and Firefox lt 49.0.2 The image doesn't listen to the max-width: 100% and get's bigger than the available space.

see the demo http://codepen.io/jvanderkroon/pen/PGXKWJ