SYDNEY (Reuters) – Five years after the death of renowned Australian actor Heath Ledger, friends and family have joined to pay tribute to the man known to the world as the evil Joker with a t-shirt honoring him as a laidback skateboarder with a touch of the daredevil. Ledger died at the age of 28 from an accidental overdose in January, 2008. He was subsequently awarded a posthumous Oscar for his portrayal of the Joker in the Batman blockbuster “The Dark Knight”. The t-shirt features a photograph of a faintly smiling Ledger posing with a skateboard by the Los Angeles River. …