language: ruby

sudo: false
cache: bundler

before_install: gem install bundler -v '~> 1.15' --conservative --minimal-deps

rvm:
  - 2.1.10
  - 2.2.7
  - 2.3.4
  - 2.4.1

language: ruby

sudo: false
cache: bundler

before_install: gem install bundler -v '~> 1.15' --conservative --minimal-deps

rvm:
  - 2.1.10
  - 2.2.10
  - 2.3.7
  - 2.4.4
  - 2.5.1

Update test matrix to latest versions, add 2.5
Update test matrix to latest versions, add 2.5
