language: node_js
node_js:
  - "6"
  - "7"
  - "8"

language: node_js
node_js:
  - "4"
  - "6"
  - "7"
  - "8"

Revert "Remove Node 4 from Travis"
Revert "Remove Node 4 from Travis"

This reverts commit 9687e269700f4bf5f39f1f2fe8ef278ebd305035.
