+minor cleanup
+minor cleanup

ks3dev/director,sheldonzf/director,pocketjoso/director,maxogden/director,meleslilijing/director,pocketjoso/director,mylikes/director,andradedev/director,noxryan/director,pandoraui/director,apeace/director,lzhengms/director,vitalsource/director,kiritoe/director,GerHobbelt/director,fadeit/director,flatiron/director,stonegithubs/director,cpg1111/director,mylikes/director,cpg1111/director,webx32/director,tanzhihang/director,GerHobbelt/director,stonegithubs/director,kiritoe/director,ks3dev/director,tanzhihang/director,sheldonzf/director,meleslilijing/director,pandoraui/director,webx32/director,fadeit/director,andradedev/director,vitalsource/director,lzhengms/director