Connect, a San Francisco start-up that helps consumers manage their social networking and mobile messaging contacts, has raised $10.3 million in a funding round led by the venture arm of Chinese conglomerate Fosun International. Connect Chief Executive Ryan Allis said the investment from Fosun’s Kinzon Capital would help to expand his product’s reach in Asia as rival messaging services such as Tencent’s WeChat amass vast numbers of users in the region.