language: python
python:
    - "2.7"
install:
    - pip install -r requirements.txt
    - npm install
script: 
    - make test

language: python
python:
    - "2.7"
install:
    - pip install -r requirements.txt
    - nvm install 4.0 && nvm 4.0
    - npm install
script: 
    - make test

Use node 4.0 in Travis
Use node 4.0 in Travis

As of #123, `npm install` crashes on versions of node < 4
