Fix: support create multi grade controller, fix #251
Fix: support create multi grade controller, fix #251

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