language: node_js

node_js:
  - "6"
  - "5"
  - "4"

script: npm run coverage
after_success: 'npm run coveralls'
language: node_js

node_js:
  - "12"
  - "10"

script: npm run coverage
after_success: 'npm run coveralls'

Update Travis CI to build on Node 10 and 12, removing Node 4, 5 and 6 as those versions are EOL.
Update Travis CI to build on Node 10 and 12, removing Node 4, 5 and 6 as those versions are EOL.
