support load extra config by filename
support load extra config by filename

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