ZURICH (Reuters) -Klaus Schwab, founder of the World Economic Forum, whose annual gathering of business and political leaders in the Swiss mountain resort of Davos became a symbol of globalisation, has resigned as chair of its trustees. The Geneva-based WEF made the announcement on Monday after revealing earlier this month that the 87-year-old Schwab, who for decades has been the face of the Davos get-together, would be stepping down, without giving a firm timeline. "Following my recent announcement, and as I enter my 88th year, I have decided to step down from the position of Chair and as a member...