Commercial travel tweaks

Changes requested from design review on 30/4/2014.
- Adding search box on mobile
- Moved search box on 900 -> 1060 articles and 980 -> 1140 on fronts.
- Removed bold from list item titles

Before;
![screen shot 2014-05-01 at 12 44 52](https://cloud.githubusercontent.com/assets/1303616/2851906/1b4fbb2a-d126-11e3-81d4-37c41ee12229.png)

After;
![screen shot 2014-05-01 at 12 45 05](https://cloud.githubusercontent.com/assets/1303616/2851909/2299ef86-d126-11e3-89ca-b4fb5ba2aa2d.png)