language: node_js

sudo: false

node_js:
  - "4"
  - "6"
  - "7"

notifications:
  email: false

language: node_js

sudo: false

node_js:
  - "6"
  - "7"
  - "9"
  - "10"

notifications:
  email: false

Remove Node 4, add Node 9/10
tests: Remove Node 4, add Node 9/10