Changes in Isis for making debug cooperate with sidebar

#### This is a fix for #5141

What this does: it moves the debug div into main content.
Also a minor stylistic touch on `<code>`

It looks like this:
![screen shot 2014-11-23 at 3 30 33](https://cloud.githubusercontent.com/assets/3889375/5157725/40c9e60c-7327-11e4-8725-b2a37e6c38f2.png)


#### Testing
Apply #5141
Apply this
Enable debug
Navigate around 
Disable debug, enable debug language
Navigate around