Fix for parameters in local files

There was an issue when local file has query string (likely) or hash parameters (not so likely).
Since having query string is quite possible (especially when using uncss after build, for invalidating the browser's cache), I provide a fix.

Example:

    <!doctype html>
      <html>
        <head>
          <link rel="stylesheet" href="fixtures/adjacent.css?v=123">
        </head>
      <body>
      </body>
    </html>