dont't fire OnAcceptNewClient event if a socket error received
dont't fire OnAcceptNewClient event if a socket error received

chucklu/SuperSocket,ZixiangBoy/SuperSocket,memleaks/SuperSocket,ZixiangBoy/SuperSocket,fryderykhuang/SuperSocket,jmptrader/SuperSocket,fryderykhuang/SuperSocket,chucklu/SuperSocket,kerryjiang/SuperSocket,jmptrader/SuperSocket,mdavid/SuperSocket,mdavid/SuperSocket,kerryjiang/SuperSocket,chucklu/SuperSocket,mdavid/SuperSocket,fryderykhuang/SuperSocket,ZixiangBoy/SuperSocket,jmptrader/SuperSocket