language: node_js
node_js:
 - "iojs-v2"
 - "iojs-v1"

language: node_js
node_js:
 - "iojs-v3"
 - "iojs-v2"

Add io.js 3.x to the test matrix
Add io.js 3.x to the test matrix

Remove io.js v1 since jest does not support it.
