FEATURE: Actually show more notifications

Show the notifications going all the way back on the user profile page. At the end, a black bar shows up.

And, crucially, the 'show more' link in the notifications links to this page.

Desktop

![image](https://cloud.githubusercontent.com/assets/627891/4128399/63368022-330a-11e4-9fa6-e3e9e089b840.png)

Mobile

![image](https://cloud.githubusercontent.com/assets/627891/4128403/7937c412-330a-11e4-8e6b-6e8739185215.png)