Party Time: Who Runs China and How by Rowan Callick Black Inc, 2013, 304 pages, $30   Rowan Callick has always been the doyen of Australian journalists on China, and in Party Time he stakes a claim to be one of the best in the world. His subject, the Chinese Communist Party, isn’t one to be taken on lightly. The party is massive, secretive, and is one of the keys to understanding what modern China is about. It’s a pleasure to read a book on China written by an author who starts out without preconceptions. We’ve all read the others.…