krewenki/jquery-lightbox — pull request #31 by TeamIguana (2013-07-15 12:23:02+00:00)
Title: added support for an HTML5 compatible attribute to define an image set

In HTML5 is not valid to use "rel" attribute with any custom value. My changes allows to use the attribute "data-lightbox-set" in place of "rel" so that a page can be HTML5 valid.