Linkify author to author search (bug 1032828)

Goes with https://github.com/mozilla/zamboni/pull/2619

Adds a link to the author that triggers an author search:
![screenshot 2014-10-01 16 04 47](https://cloud.githubusercontent.com/assets/1106/4484757/d17d29e8-49bf-11e4-8e3e-9f3a07c355e5.png)

hm? .subdetail is the div and the a is inside that. There's no class on the anchor tag.

Or are you recommending:
```
    .author a {
        color: $primary-blue;
    }
```
?