sudo: false

language: ruby
rvm:
  - 2.2.5

install:
  - script/setup

script:
  - script/cibuild

cache:
  bundler: true

sudo: false

language: ruby
rvm:
  - 2.2.5
  - 2.3.1

install:
  - script/setup

script:
  - script/cibuild

cache:
  bundler: true

Add Ruby 2.3.1 as another Ruby to test
Travis: Add Ruby 2.3.1 as another Ruby to test

[GitHub] This commit resolves #114.
