support close relation when circle invoke
support close relation when circle invoke

maxzhang/thinkjs,75team/thinkjs,snadn/thinkjs,akira-cn/thinkjs,75team/thinkjs,akira-cn/thinkjs,75team/thinkjs,akira-cn/thinkjs,thinkjs/thinkjs,Qihoo360/thinkjs,maxzhang/thinkjs,maxzhang/thinkjs