language: node_js
node_js:
  - "0.10"
  - "0.12"
  - "4"
  - "5"
  - "6"
script: npm run preversion && npm run coveralls

language: node_js
node_js:
  - "0.10"
  - "0.12"
  - "4"
  - "5"
  - "6"
  - "8"
  - "10"
  - "12"
  - "14"
  - "15"
script: npm run preversion && npm run coveralls

Update tested versions on Travis CI
Update tested versions on Travis CI

- Add missing LTS versions (8, 10, 12 and 14)
- Add current version (15)
