sudo: false
language: ruby
rvm:
  - 2.3.1
before_install: gem install bundler -v 1.12.3

sudo: false
language: ruby
rvm:
  - 2.1.8
  - 2.2.5
  - 2.3.1
before_install: gem install bundler -v 1.12.3

Add other version of ruby
CI: Add other version of ruby
