Add option to sort active trail to top of menu tree

If you've got a really wide menu tree and an end-user clicks on one of the bottom links, the children items are way at the bottom of the tree. And if you keep clicking items that are near the bottom of the links, the children items become more and more difficult to see as you have to scroll down just to see them.

To fix this problem, we can add an optional feature to allow the active menu trail items to appear at the top of the tree.