language: node_js
node_js:
  - "8.0"
  - "7.9"
  - "6.10"
  - "4.8"
after_success: npm run coverage

language: node_js
node_js:
  - "12.6"
  - "10.16"
  - "8.16"
after_success: npm run coverage

Update Travis CI node environments
Update Travis CI node environments
