Footer redux

Since footer navigation and main navigation partially share the same styles, redesigning the footer has a direct impact on the main navigation design.

This is a first iteration towards the full redesign of the footer. For now it does not include desktop specific styles as per Chris' design.

## Mobile

![terms of service 3](https://f.cloud.github.com/assets/85783/1164763/cdfcd622-205f-11e3-8d17-7cbc2b06842f.png)

## Tablet

![terms of service 2](https://f.cloud.github.com/assets/85783/1164764/d6b2def6-205f-11e3-9423-16b99c90eebd.png)


## Desktop

![terms of service](https://f.cloud.github.com/assets/85783/1164771/ddef5bf4-205f-11e3-847b-54f35d84a161.png)


## Wider

![terms of service 1](https://f.cloud.github.com/assets/85783/1164773/e29694d8-205f-11e3-9a86-55d8ca1f3c53.png)