chore(package): update @commitlint/travis-cli to version 6.0.2
chore(package): update @commitlint/travis-cli to version 6.0.2

Closes #767

davidmsibley/angularjs-portal,UW-Madison-DoIT/angularjs-portal,UW-Madison-DoIT/angularjs-portal,UW-Madison-DoIT/angularjs-portal,davidmsibley/angularjs-portal,davidmsibley/angularjs-portal,UW-Madison-DoIT/angularjs-portal,davidmsibley/angularjs-portal