language: node_js
services:
  - mongodb
node_js:
  - 4
  - 6
script: "npm run $TEST_STEP"
env:
  matrix:
    - TEST_STEP=lint
    - TEST_STEP=test
notifications:
  email: false

language: node_js
services:
  - mongodb
node_js:
  - 4
  - 6
script: npm run ci
notifications:
  email: false

Consolidate build steps in one to avoid overhead.
Consolidate build steps in one to avoid overhead.
