language: node_js
node_js: 4

language: node_js
node_js:
  - 4
  - 6
  - 8
before_install:
  - npm install -g npm@5
  - npm install -g greenkeeper-lockfile@1
before_script: greenkeeper-lockfile-update
after_script: greenkeeper-lockfile-upload

Test multiple Node js LTS releases
Test multiple Node js LTS releases

Add greenkeeper lockfile checks
