language: node_js
node_js:
  - "node"
  - "7"
  - "6"
script:
  - npm run build

language: node_js
node_js:
  - "node"
  - "6"
script:
  - npm run build

Remove node 7 from Travis CI since it is also latest node version
Remove node 7 from Travis CI since it is also latest node version
