Responsive bootstrap

Responsive is working in Chrome, Safari, Firefox, but does cause issues in IE7, 8 and 9 (see screenshots for egs)

@JeniT  Do we want to sacrifice IE to get it working in other browsers for tomorrow?

Using respond.js and fitvid would help us getting it working smoothly next week.

![screen-shot-2013-06-14-at-13 25 27](https://f.cloud.github.com/assets/2854757/654068/c769ef3c-d4ee-11e2-865c-88dcaa04934c.png)
![screen-shot-2013-06-14-at-13 26 42](https://f.cloud.github.com/assets/2854757/654069/c77ccf44-d4ee-11e2-96fe-e142f2a93266.png)