Improve mobile site view page and about page

Also includes general style improvements that affect all pages, though
not all pages are easily arrived at. Closes #376.

![2013-11-09 06 58 07](https://f.cloud.github.com/assets/1310872/1506170/da43aeac-490d-11e3-93f5-ccd0134165cc.png)

![2013-11-09 06 58 34](https://f.cloud.github.com/assets/1310872/1506171/dd16ce02-490d-11e3-9df9-7cf1b2f36510.png)