PHP 5.3 issue

Hi,

In line #164 you use:

function theme_link_node_thumbnail(&$node) {

And it should be:

function theme_link_node_thumbnail($node) {

As I know this change should not affect PHP5.2.x users since Objects are passed by reference anyway in PHP 5.2

4All: This issue makes impossible to show link when you use PHP 5.3 - instead it shows just empty string.