JAKARTA (Reuters) - Indonesia's national search and rescue agency has found a black box flight recorder from a Russian Sukhoi Superjet 100 that crashed during a demonstration flight killing all 45 people on board, an agency official said on Wednesday. The aircraft crashed on May 9 on the slopes of a dormant volcano about 40 miles south of Jakarta. Those on the flight to show off the passenger jet unveiled in 2007 as part of a drive to restore pride in Russia's aviation industry included Indonesian businessmen, Russian embassy officials and journalists. ...