FILE - In this Aug. 11, 2015 photo, a shadow of a man is reflected on a glass as he reads a newspaper reporting China's central bank or People's Bank of China announced the 2015 edition of the 100 renminbi notes will be issued starting from November 12, at a stand in Beijing. (AP Photo/Andy Wong, File) By ELAINE KURTENBACH China has been expanding use of digital currencies as it promotes wider use of its yuan, or renminbi, to reflect its status as the world's second-largest economy and challenge the overwhelming sway of the U.S. dollar in international trade and...