title: Add snap-to position in a UITableView or UIScrollView
body: <p>Is it possible to add a snap-to position in a UITableView or UIScrollView? What I mean is not auto scroll to a position if I press a button or call some method to do it, I mean is if I scroll my scroll view or tableview around a specific point, say <code>0, 30</code>, it will auto-snap to it and stay there? So if my scroll view or table view scrolls and then the user lets go inbetween <code>0, 25</code> or <code>0, 35</code>, it will auto "snap" and scroll there? I can imagine maybe putting in an if-statement to test if the position falls in that area in either the <code>scrollViewDidEndDragging:WillDecelerate:</code> or <code>scrollViewWillBeginDecelerating:</code> methods of UIScrollView but I'm unsure how to implement this in the case of a UITableView. Any guidance would be much appreciated. </p>