replace .parentNode.parentNode with better selectors

[jewel-andraia]

there are many older bits of RES which suffer from .parentNode.parentNode..., when they ought to use .closest('.thing') or a similar selector. This is a problem when reddit changes its HTML structure a little. We should do a sweep for any instances of this and maybe implement a $.fn.thing = function(selector) { var thing = $(this).closest(".thing"); if (selector) { var selected = thing.find(selector); return selected } else return thing; }

[jagjotsinghparry]

Does this bug still exists? I can help resolve it. :)