EZP-22253 relation list field in the raw content view

## Task
Goal here is to display the object relation list field in the raw content view of the platformUI.

## Screenshots

![image](https://cloud.githubusercontent.com/assets/5558766/4880603/7c160e10-633d-11e4-8766-0ed00ca00344.png)


![image](https://cloud.githubusercontent.com/assets/5558766/4880617/b33812e4-633d-11e4-9ee0-77f43ff95b0d.png)


## Links

Jira ticket : https://jira.ez.no/browse/EZP-22253


actually you can have an error and still getting some loaded contents, so you should first display the loaded related contents and then display the error message if there was an error.