improved the BeginEndMarkReceiveFilter to allow user to decide whether return a requestInfo
improved the BeginEndMarkReceiveFilter to allow user to decide whether return a requestInfo

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