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.
"insightJS" should be capitalised.

Also, is it possible to cut down the text at this point? The front page is a bit too text-heavy