Angela Merkel was jeered and whistled as she arrived at German Reunification Day celebrations in Dresden on Monday. Shouts of “get out” were heard as the German chancellor arrived in Dresden — birthplace of xenophobic movement PEGIDA — for celebrations. The angry crowd in the east German city also waved signs saying “Merkel must go”. The German leader has been under pressure at home over her liberal refugee policy that saw an influx of nearly one million migrants last year. …