language: node_js
node_js:
  - 0.10

before_script:
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start
  - npm install -g grunt-cli
  - npm install --dev

script:
  - grunt travis
language: node_js
node_js:
  - 4.1

before_script:
  - npm install --dev

script:
  - npm test

Remove Grunt references from Travis
Remove Grunt references from Travis

Also update the Node.js version, and take out some cruft pertaining to
Karma, which isn't working or being used.
