rework sl-controls so they don't interfere with clicking on links.

@maethu can you take a look at this. I changed the Simplelayout controls so they don't interfere with clicking links.
By default the Controls are now closed and will open on click but only the one clicked not all.
![bildschirmfoto 2014-02-12 um 11 41 49](https://f.cloud.github.com/assets/358342/2148994/27e5e32a-93ee-11e3-82d6-ab888c482899.png)
Open it looks like this:
![bildschirmfoto 2014-02-12 um 11 42 02](https://f.cloud.github.com/assets/358342/2149003/3bfe4a14-93ee-11e3-8330-81485597c984.png)
As you may see the marked block is the one on the bottom, so the actions belong to this one and will vanish if i move the mouse up in the block on top so the links will be accessible without problem.

Link is hidden by actions:
![bildschirmfoto 2014-02-12 um 11 43 48](https://f.cloud.github.com/assets/358342/2149080/56689d0e-93ef-11e3-8582-4e46c4837b03.png)

Link is perfectly visible after moving the mouse.
![bildschirmfoto 2014-02-12 um 11 43 36](https://f.cloud.github.com/assets/358342/2149072/262ad8b4-93ef-11e3-8c6b-99bc8b3de1f5.png)

And since we start with the controls closed and everything is loaded when the user clicks we can set the width so the controls are still on one line.
![bildschirmfoto 2014-02-12 um 14 45 27](https://f.cloud.github.com/assets/358342/2149221/67d97642-93f1-11e3-9171-9d2b7abde835.png)