Issue with update dinamicaly scrooll

[catiraumihail]

Sorry for my bad english :).

Update to N px issue - content bottom must be at the bottom of viewport.

How to check this issue.
I have in content some blocks (elements). I try to dynamically scroll to this elements.
Call method update(element.top), if this is last element there is space above it instead to place this item
at the bottom of viewport.

How to fix:

//after line 184: check if content bottom is the same as  viewport bottom
    if((this.contentSize - this.contentPosition - 1) < this.viewportSize){
            // set viewport bottom = content bottom
	this.contentPosition = Math.max(this.contentSize - this.viewportSize, 0);
}