Simplified the section switcher class.
Added an iOS like tumbler for range inputs.

TODO:
Implement drag and swipe.
Implement click and tap support.
Added _.debounce to the fn library.
Added a move event library to jquery events.
The tumbler now supports a few events.

It now reacts to changes to the range input.
The tumbler can now be dragged to change the value.
The tumbler items can now be clicked to change the value.
Tumbler item dimensions are now set in css.
The range tumbler now uses translate if available.
Added a new testbed for the jack webgl code.