language: node_js
node_js:
  - "6.0.0"
  - "6"
  - "7"
  - "8"
  - "9"
  - "10"
after_success: npm run test:coverage

language: node_js
node_js:
  - "8.0.0"
  - "8"
  - "9"
  - "10"
  - "11"
  - "12.1"
after_success: npm run test:coverage

Update Node versions to test against in Travis
Update Node versions to test against in Travis
