language: node_js
node_js:
   - "0.10"
   - "0.12"
   - "4"
   - "6"
   - "8"
   - "10"
   - "node"

language: node_js
node_js:
   - "6"
   - "8"
   - "10"
   - "node"

Drop support for node.js < 6 (semver-major)
Travis: Drop support for node.js < 6 (semver-major)
