Hotfix/2389 scatter report not plotting

Hi @aronasorman .

I and @cpauya have some difficulties solving this issue it seems that the exercise.json change its format.
When the search_fun_multi_path return all items with a particular path it fails and raise an error Unexpected error: list indices must be integers, not str
Do you have any idea on this?

I will attach my progress below it show the plot and some user
![screen shot 2014-11-17 at 11 41 47 pm](https://cloud.githubusercontent.com/assets/4099119/5072334/b1f407a4-6eb3-11e4-9871-883e7f470e35.png)
.