Add jquery.cycle2

The successor to Cycle. Cycle2 is a mobile and desktop friendly
slideshow built around ease-of-use with a declarative API.
It supports responsive designs, dynamic slideshow manipulation,
swipe events, and lots of options!

Minified files downloaded from: http://jquery.malsup.com/cycle2/download/

Author: Mike Alsup
Repository: https://github.com/malsup/cycle2
License: MIT / GPL