Indonesian President Prabowo Subianto on Saturday cancelled a planned trip to China as days of protests spread further outside the capital Jakarta, with several regional parliament buildings set ablaze.Prabowo had been expected to attend a “Victory Day” parade in Beijing on September 3 to mark the 80th anniversary of the end of World War II following Japan’s formal surrender.The protests, the first major test for Prabowo’s nearly year-old government, began in Jakarta this week over lawmakers’...