By James Davey LONDON (Reuters) – Fashion media and analysts broadly welcomed Marks & Spencer's new clothing strategy and a preview of autumn/winter fashion ranges, giving the firm's boss some respite from pressure over falling sales. Britain's biggest clothing retailer said on Tuesday it would focus on better quality and styles in womenswear, deliver more compelling and clearer sub-brands, and make shopping easier in stores, as it tries to reverse nearly two years of declining sales. …