add _400Action for es6 template controller
add _400Action for es6 template controller

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