Aggrigate division title on policy votes list

Interest in team thoughts on this.

Aggregates the house, date and subject columns on a policy divisions list. One smaller screens the 'support’s vote' and 'division outcome' and listed below each title. As usual, this is just the arranged content on the page.

Wider screens get a scalable table

![division_list_aggri copy](https://cloud.githubusercontent.com/assets/1239550/4243780/b8288bc4-3a13-11e4-82a2-397960071867.jpg)

Smaller screens get a list of divisions with the supporter vote/outcome comparison below each title.
![iphone_division_list_aggri copy 2](https://cloud.githubusercontent.com/assets/1239550/4243781/b82b0804-3a13-11e4-95a7-44ba732d29ad.jpg)