Sort by Score & No Scope

You know these annoying Scope things at the end of Derpibooru links that don't even seem to serve any purpose? All they do is making URLs unnecessarily long. This script removes them.

Before: http://www.derpibooru.org/262378?scope=scpe7ad197c2d6f7797c09c1defd742b63a60ad57bcc

After: http://www.derpibooru.org/262378

Additionally, it adds a "Score" button next to the search bar that directly sorts the search results by score, in case you quickly want to see the top pictures of your entered tags.