sudo: false

language: node_js

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

matrix:
  fast_finish: true

cache:
  directories:
    - node_modules

sudo: false

language: node_js

node_js:
  - "4"
  - "6"
  - "8"
  - "10"

matrix:
  fast_finish: true

cache:
  directories:
    - node_modules

Add Node.js 10.x. in Travis.
Add Node.js 10.x. in Travis.
