language: node_js
node_js:
  - '4'
on:
  tags: true

language: node_js
node_js:
  - '4'
branches:
  only:
    - /^v[0-9]/

Handle Travis bug for duplicate builds
Handle Travis bug for duplicate builds

- https://github.com/travis-ci/travis-ci/issues/2456
- https://github.com/travis-ci/travis-ci/issues/1532#issuecomment-40115887
