Channel vis ordering fix

STT
* Add a Counter brick
* Configure the channels like this 
![image](https://cloud.githubusercontent.com/assets/25212/4365282/163ed804-42ab-11e4-9c1e-79feada7da90.png)
* Save the app
* Refresh the designer

Before: Channel vis lines appear in a different order than the menu
After: Channel vis lines appear in the correct order

See #2129 for more detail. Fixes #2129