Use arrays instead of query strings in Twenty Ten

[demetris]

The attached patch replaces query strings with arrays in the one instance of wp_nav_menu and in five instances of wp_link_pages in the Twenty Ten theme.

For the preference of arrays over query strings, see #6647.

Replaces query strings with arrays in Twenty Ten

(In [13818]) Replace query strings with arras in Twenty Ten, see #12698. Props demetris.