before_install:
    - npm install -g gulp bower
script:
    - npm test
language: node_js
node_js:
    - "6.3.1"
    - "4.4.7"
    - "4.4.5"
before_install:
    - npm install -g gulp bower
install: 
    - npm install
    - bower install
script:
    - npm test
language: node_js
node_js:
    - "6.3.1"
    - "4.4.7"
    - "4.4.5"
Add 'npm install' and 'bower install' to 'install' step
Add 'npm install' and 'bower install' to 'install' step
