Working ring algorithm (first go)

* A working ring algorithm, barring the issues that the starting point
is 90 degrees from where it should be and everything is going clockwise
instead of counter-clockwise. Oh the agony.
Improving documentation

* Removed "Options:" text from all examples - needless tripe
* Added 'clockwise' option for card-ring in first example
* Working out the API for this a bit. Paradigm consists of:
1. All Boolean options being represented as the inclusion of a class on
the primary div element
2. All integer options being represented with a data-* attribute on the
primary div element
Card ring direction now works

* A card ring can now display its elements in a clockwise or
counter-clockwise direction
Add card ring progressive behavior

* Card ring progressive example now shows the appropriate layout