Features ads take2

New design for features container with ads.

Also fixes numerous IE11 issues related to this ad.

![screen shot 2014-02-05 at 17 20 41](https://f.cloud.github.com/assets/85783/2089646/f04b243e-8e89-11e3-96b3-9cebe889d1ce.PNG)
![screen shot 2014-02-05 at 17 20 56](https://f.cloud.github.com/assets/85783/2089653/0139b756-8e8a-11e3-8119-03dce60a5bd8.PNG)
![screen shot 2014-02-05 at 17 21 06](https://f.cloud.github.com/assets/85783/2089654/032effa8-8e8a-11e3-8441-168310f510e0.PNG)

![ ](http://media.giphy.com/media/f7I2iObZDBVMk/giphy.gif)