Revert "disabled any item that appears in the list but should not be …

…enabled. This can occur when the list is longer than the list area allows, so the scrollbar appears. If the list height doesn't divide evenly by the list item height, a little sliver of one last item will be visible at the bottom of the list and it can be clicked. This causes an error. I found that disabling the last item solves the problem. I'm not sure if there are other ramifications to this change, such as any need to re-enable list items if the list length changes, etc. "

This reverts commit 9735dab.