Improve coverage report

[abner-math]

I'm using Infrabox to show the coverage report of my unit tests and it's great, but it'd be even greater if the there was an improvement in the UI. Currently it's a little difficult to do any analysis. My suggestions:

• Allow to sort classes by either File, Branches, Functions or Lines by clicking on each one of those categories;
• Do not list all classes. Instead, organize them by directory/package, and allow the user to navigate through directories/packages. Show average statistics for each directory/package. Thank you and keep up the great work!

[ib-steffen]

Yes valid points. We will work on improving the UI in the coming weeks.