Allow ES6 syntax in joshing rules
Allow ES6 syntax in joshing rules

jimhotchkin-wf/wGulp,Workiva/wGulp,robertbaker/wGulp,robertbaker/wGulp,jimhotchkin-wf/wGulp,robertbaker/wGulp,jimhotchkin-wf/wGulp,Workiva/wGulp,Workiva/wGulp