ATHENS/MADRID - With sorrow, some support for Brexit and even hope of a return, Europeans from across the EU’s 27 remaining members bade farewell to the United Kingdom on the eve of its historic departure. The United Kingdom leaves the European Union an hour before midnight on Friday, casting off into an uncertain future that also challenges Europe’s post-World War Two project of forging unity from the ruins of conflict. “Farewell, bye bye my love!” said Rudolf Stockey, speaking to Reuters in German. From across Europe, EU citizens wished the United Kingdom the best after 47 years of membership. Some...