language: node_js
node_js:
  - "iojs-v1"
  - "0.12"
  - "0.10"
env:
  - NODE_ENV=development
  - NODE_ENV=production

language: node_js
install: npm install --production=false
node_js:
  - "iojs-v1"
  - "0.12"
  - "0.10"
env:
  - NODE_ENV=development
  - NODE_ENV=production

Add `--production=false` to installation step
[Travis] Add `--production=false` to installation step

When NODE_ENV=production, npm does not install devDependencies by default. However we need the devDependencies in order to build index.js, so manually specify `npm install --production=false`.
