Reformat search suggest so tags don't overflow taxonomies

This isn't necessarily meant to be merged in as-is, but instead spur a conversation about the way these things could look.

Here's some screenshots:

### Nav
![screen shot 2014-08-25 at 4 53 21 pm](https://cloud.githubusercontent.com/assets/430385/4036461/1697d4ee-2c9a-11e4-8b11-f71ff31321b8.png)

### Search home page
![screen shot 2014-08-25 at 4 53 14 pm](https://cloud.githubusercontent.com/assets/430385/4036460/16974c9a-2c9a-11e4-86d9-bd0c7adc6443.png)

### Search from the scriblio authority dashboard
![screen shot 2014-08-25 at 4 52 59 pm](https://cloud.githubusercontent.com/assets/430385/4036459/1693d2ae-2c9a-11e4-88f5-ff8c2962bf13.png)

### Scriblio authority dashboard term list
![screen shot 2014-08-25 at 4 52 49 pm](https://cloud.githubusercontent.com/assets/430385/4036468/32cc0d1a-2c9a-11e4-8836-668a3d99cbdd.png)

See: https://github.com/GigaOM/legacy-pro/issues/3998