China has demoted the director of the Hong Kong and Macau Affairs Office, the State Council said Thursday, following months of pro-democracy protests in the semi-autonomous city. The shuffling of officials at China's top policy body on the financial hub's affairs comes after months of political unrest the starkest challenge to Beijing since the former British colony was returned to Chinese rule in 1997. Senior Beijing official Xia Baolong, currently secretary-general at the national committee of China's top political advisory body, was promoted to the director while Zhang Xiaoming was re-appointed...