Update to front page to use dashboard example

The front page now provides an introduction to the data manipulation feature set of the library.

I moved the index javascript into its own controller and separated the controllers into individual files which are now concatenated into a single production controller.

Moved styles into css.

More polish can be added over time, but it should serve as a basic open source website.
The y-axis data has an ordering already of 4+, 9+, 12+, 17+ and Not yet rated. We should avoid reordering these if possible