I've just learned that Jonathan Weisgal, the former CAA agent who was a titan in the early days of the rise of the indie film business, passed away Sunday in Los Angeles at age 55. Weisgal, who died after a 2 1/2-year fight against pancreatic cancer, was buried in New Jersey. Many of his Hollywood colleagues saluted him today at a memorial held at The Mark in Los Angeles, where testimonials were read from industry colleagues who benefited from Weisgal’s counsel including…