[dist] Version bump. 1.1.8
[dist] Version bump. 1.1.8

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