Add cartographics to upper metadata section.

Closes #978 

### Example km744xz1362
![km744xz1362](https://cloud.githubusercontent.com/assets/96776/4945189/1f87bd4a-6605-11e4-8449-d3293fb7f4ef.png)

@jvine the label comes from the ModsDisplay gem and it always puts cartographic information under the "Map data" label.  If that needs to change it'll have to be in the ModsDisplay gem itself.