language: node_js
node_js:
  - "6"
  - "4"
before_script:
  - npm install
script:
  - npm test

language: node_js
dist: trusty
node_js:
  - "6"
  - "4"
before_script:
  - npm install
script:
  - npm test

Update CI config to use Trusty image
Update CI config to use Trusty image

Update the Travis image to make it possible to build Node modules; see
https://docs.travis-ci.com/user/languages/javascript-with-nodejs#Node.js-v4-(or-io.js-v3)-compiler-requirements
