Instead of 'View this section' taxonomy_context should get the term_data.description if present

In the function taxonomy_context_show_children(), there is a line:

$params = array("title" => t("View this section"));

This line should be changed to:

$params = array("title" => t($term->description ? $term->description : "View this section"));

This way, if someone has taxonomy descriptions, they would be shown on mouse hover, otherwise 'View this section' will be displayed instead.