Incorrect "this" in the "attachWheel" function

[ne0x]

We have this === window inside attachWheel function, because attachWheel(); is called in the code without context. I think it is not necessary to use window and it will be more semantic to use the target element. Also it will save resources in case when the scrolled container is removed without destroy, so the garbage collector will have possibility to clean dead event handlers. We can just replace attachWheel() with attachWheel.call(this) to fix it.

[alvarotrigo]

This still not solving the problem. The detachWheel method doesn't actually remove the mouse handler...

You can try it in this demo as I explained in this other opened issue

[alvarotrigo]

A problem related with the releaseScroll var probably?