normalize pathname.
normalize pathname.

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