language: node_js
node_js:
  - v7
  - v6
  - v5
  - v4
  - '0.12'
before_script:
  - npm install -g gulp-cli
script: gulp

language: node_js
node_js:
  - v7
  - v6
before_script:
  - npm install -g gulp-cli
script: gulp

Remove old version of node from Travis config
Remove old version of node from Travis config

I may need to add older versions back, but I don't see any reason to support
or build to anything older that node 6.
