 Prince Harrys autobiography Spare sold 1.4 million English-language copies on its first day in the UK, United States and Canada, publisher Penguin Random House said on Thursday.The sales figures come as the first opinion poll since the memoirs publication showed Harrys popularity in the UK continuing to nosedive.The headline-grabbing book was published on Tuesday and accompanied by four high-profile promotional interviews with the prince.Revelations included Harrys claim his brother Prince... 