language: node_js
node_js:
  - '6'
  - '4'
after_success: ./node_modules/.bin/coveralls --verbose < coverage/lcov.info

language: node_js
node_js:
  - '8'
  - '6'
after_success: ./node_modules/.bin/coveralls --verbose < coverage/lcov.info

Test against nodes 6 and 8.
Test against nodes 6 and 8.
