API Sites: Condensed View

[scottgonzalez]

A lot of users are requesting a more condensed view of content, especially listing pages.

http://news.ycombinator.com/item?id=5021241

[ajpiano]

I don't necessarily think we need a separate "condensed view" however, we definitely need(ed) to make better usage of the whitespace. Initial progress here: 629da37