Split linked and unlinked series.

Closes #94 Closes #103 

Remove MARC 490 from linked series and display it separately in bibliographic section.
Moved the rest of the series to the upper metadata section.

![linked-series](https://cloud.githubusercontent.com/assets/96776/3207412/134b79e6-ede1-11e3-8e24-b636e32eb5e7.png)

![unlinked-series](https://cloud.githubusercontent.com/assets/96776/3207413/16bafae8-ede1-11e3-9c6b-321a1f703430.png)