Give each view a page header.

I thought it might be nice to give each view a dedicated "page header." This allows the view to clearly communicate its purpose with some header text. I elected to use the "Source Code Pro" font for headers, as it is used on the help subdomain. I don't think a page header is necessary for every view (especially as the UI evolves), but it may be helpful for the time being.

#### Before
![before](https://cloud.githubusercontent.com/assets/2092395/3490448/948e9c72-056a-11e4-8ef0-fd88fb208f86.png)

#### After
![after](https://cloud.githubusercontent.com/assets/2092395/3490449/9b269eb8-056a-11e4-8245-19bfe1c0fdcf.png)