Title does not display when sharing paths that are not nodes

We are adding service links at the theme level for any page, using the else statement in service_links_render to pass the $_GET['q'] to the service links. We noticed, however, that the title never came through. A minor rework of that code allows the title to work just find. The included patch is for 6.x-1.x-dev

Also adds declaration of the two variables outside of the if statement as an optional point of strictness.

Needs review.