language: node_js
node_js:
  - "0.12"
  - "0.11"
  - "0.10"
  - "0.9"
  - "iojs"
  - "iojs-v1.0.0"
before_install:
  - sudo apt-get update
install:
  - sudo apt-get install rpm

language: node_js
node_js:
  - "0.12"
  - "0.11"
  - "0.10"
  - "0.9"
  - "iojs"
  - "iojs-v1.0.0"
before_install:
  - sudo apt-get update
install:
  - sudo apt-get install rpm
  - npm install

Add `npm install` to Travis config
Add `npm install` to Travis config

Travis CI was supposed to run `npm install` by default
but somehow is not doing it.
