language: node_js
sudo: false
node_js:
  - "4"
  - "5"
  - "6"

notifications:
  email:
    on_success: never

language: node_js
sudo: false
node_js:
  - "4"
  - "5"
  - "6"
  - "7"

notifications:
  email: false

Disable email notifications and add Node.js 7
Disable email notifications and add Node.js 7