language: ruby
rvm:
  - 2.2
  - 2.3
  - 2.4
  - jruby-9.1.9.0

matrix:
  allow_failures:
    - rvm:
        - ruby-head
        - rbx-2

notifications:
  email:
    on_success: change

language: ruby
rvm:
  - 2.2
  - 2.3
  - 2.4
  - jruby-9.1.9.0

notifications:
  email:
    on_success: change

Remove Travis CI `matrix` config
Remove Travis CI `matrix` config
