Can't listen to window.scroll

[wheresrhys]

I have

var del = new Delegate(window);
del.on('scroll', null , function () {}); // fails
del.on('scroll', document , function () {}); // succeeds
del.on('resize', null , function () {}); // succeeds

I'm not sure what I think should be done about this (if anything), but it's not nice behaviour

[matthew-andrews]

Duplicate of #32