upgrade ws to 0.8.0
upgrade ws to 0.8.0

blueseason/pomelo,bobcui/pomelo,blueseason/pomelo,blueseason/pomelo,PortNumber53/pomelo,rain1017/pomelo,ljhsai/pomelo,baidao/pomelo,ljhsai/pomelo,PortNumber53/pomelo,NetEase/pomelo,baidao/pomelo,bobcui/pomelo,PortNumber53/pomelo,rain1017/pomelo,NetEase/pomelo,silverera/pomelo_fix,baidao/pomelo,silverera/pomelo_fix,bobcui/pomelo,NetEase/pomelo,rain1017/pomelo,ljhsai/pomelo,silverera/pomelo_fix