Bringing code show/hide button back outside of dropdown for quickaccess

Currently, output show/hide button of paragraph is placed outside of setting dropdown menu.
Why don't we place code show/hide button together?

![image](https://cloud.githubusercontent.com/assets/1540981/4968168/10e09bc6-6836-11e4-9fca-b22c2c961ff3.png)

Ready to merge.