message: Update .travis.yml to use newer version
diff: @@ -20,7 +20,7 @@ addons:
  before_install:
  - |
  - nvm install 8.9.3 || exit 2
  + nvm install 8.12.0 || exit 2
  if [ $TRAVIS_OS_NAME == "linux" ]; then
  export DISPLAY=:99.0
  sh -e /etc/init.d/xvfb start
  