create $.lazyLoadXT on load
reformat js method chaining
reorder "if" to check fastest condition first
add jquery.lazyloadxt.video.js
update tests to load "extra" video code
update grunt script
update video-related demos to use new code
use unminified code in demo (for debug purposes)
add border to loading videos
rewrite README
reformat json files
docs refer to readme section
ver 0.8.2