Display the need status on need pages

This includes colours for statuses that aren't supported yet, but will be added imminently.

![image](https://cloud.githubusercontent.com/assets/23801/5164277/ae5fa0e8-73cd-11e4-86bf-7e2d8223568b.png)

![image](https://cloud.githubusercontent.com/assets/23801/5164280/bbdfc4dc-73cd-11e4-9174-f127f680b969.png)