Added Caption functionality

Minimal HTML has been added to enhance the caption placement and function. Can be styled, moved, changed to fit any project. Added CSS3 animation to the caption box. Used updated JS file provided by Ryan Long to correct CSS3 animation errors on slide swap.

A better example of the slider working alone can be found here:
http://flexslider.mykeargyle.com/

This is the minimal amount of code in the instructions for Flex Slider. A few minor style changes were made.