EZP-23678: Add edit and remove on view section

Link: https://jira.ez.no/browse/EZP-23678

## Description
See issue.

## Screenshot
Buttons need some positionning.

![sectionview](https://cloud.githubusercontent.com/assets/4035241/5284534/2f0c06e8-7b15-11e4-96d0-f4b9d41605dc.png)


## Test
Manual

## TODO
- [ ] Position buttons in the page
- [x] Create a formtype
- [x] Sanity tests
- [x] Update display rules on delete button --> follow up story, depend on kernel future dev.
this is not the correct place for that. Most likely, with that there's an issue with the tabs. This div should be right after the paragraph with the assigned count message in the div with the ez-tabs-panel class.