language: ruby
os:
  - linux
  - osx
rvm:
  - 2.2.6
  - 2.3.3
notifications:
  webhooks:
    urls:
      - https://webhooks.gitter.im/e/907e95dada362be2a13c
    on_success: change  # options: [always|never|change] default: always
    on_failure: always  # options: [always|never|change] default: always
    on_start: never     # options: [always|never|change] default: always