language: ruby
rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.10
  - 2.2.5
  - 2.3.1
before_script:
  - "sudo apt-get install tnef -y"

language: ruby
rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.10
  - 2.2.5
  - 2.3.1
before_script:
  - "sudo apt-get install tnef -y"
before_install:
  - gem update --system
  - gem install bundler

Update bundler before installing gems
Travis: Update bundler before installing gems
