mootools/mootools-more — pull request #1148 by DimitarChristoff (2012-08-28 10:17:46+00:00)
Title: fix for #1133 so that IE9+ which has readystatechange for legacy 

flipped feature check to take advantage of addEventListener for `load` instead, if available - ie9 reports readystatechange on the element despite being able to add normal events.