New lending page

Adding a lending vertical page (which will replace creative industries)

Includes update for main nav (removing creative industries and replacing with lending)

@jamesshedden pls review @angusbayley look okay?

![image](https://cloud.githubusercontent.com/assets/1246990/4594702/c85ef728-5091-11e4-8177-fd43ffcc275b.png)

![image](https://cloud.githubusercontent.com/assets/1246990/4594652/66eb27c8-5091-11e4-89d1-5cb522ff6a75.png)

*fine-grained (sorry!)