nette/tracy — pull request #33 by milo (2014-04-23 11:20:21+00:00)
Title: Preserve CSS class on collapsing

On collapsing, `inner` class has been dropped and nice gray border disappeared.

![ps 003](https://cloud.githubusercontent.com/assets/439140/2776734/187311fc-cad9-11e3-8354-2cd733ae6988.PNG)