language: node_js
node_js:
  - "0.12"
  - "0.11"

language: node_js
node_js:
  - "8"
  - "6"
  - "4"

Update Node versions tested against on CI
test(ci): Update Node versions tested against on CI

This updates `.travis.yml` to test against Node.js versions 4, 6, and 8

Change-Type: patch
