enable all es6 features
enable all es6 features

jden/jsw,matthieuprat/standard,ricardofbarros/standard,Flet/standard-engine,TheLady/standard,JedWatson/happiness,icemobilelab/icemobile-standard,xjamundx/standard,mattdesl/standard,JedWatson/happiness,Flet/standard,driftyco/standard,medseek-engineering/standard,tk120404/standard,beni55/standard,standard/standard,leecade/standard,yamafaktory/standard,mnquintana/standard,Eruant/standard,salespreso/standard,standard/standard,bengl/standard,LinusU/standard,timbl/standard,uber/standard,keis/standard,stevemao/standard,tjwudi/standard,reggi/standard,jasonpincin/standard,SimenB/standard,John-Lin/standard,yudiutomo/standard,pombredanne/standard-1,watson/standard-engine,febeling/standard,kublaj/standard,bradparks/standard,cesarandreu/standard,koddsson/standard,SimenB/standard,LinusU/standard-engine,LinusU/standard,Holowaychitos/standard,feross/standard,feross/standard,ricardofbarros/standard-engine