(Reuters) – Alibaba Group Holding Ltd is planning to increase the size of its initial public offering due to strong investor demand, Bloomberg reported, citing people with knowledge of the matter. The Chinese e-commerce company plans to increase the top end of the price range to above $70 and plans to announce the new price range as early as Monday, Bloomberg said. (http://bloom.bg/1q6cHTi) Reuters reported on Friday that Alibaba plans to close its IPO order book early after it received enough orders to sell all the shares in the record-breaking offering. …