language: ruby
sudo: false

rvm:
  - 2.3.1

before_install: gem install bundler -v 1.11.2

gemfile:
  - gemfiles/Gemfile-rails.4.2.x
  - gemfiles/Gemfile-rails.5.0.x

language: ruby
sudo: false

rvm:
  - 2.3.1

before_install: gem install bundler --no-document

gemfile:
  - gemfiles/Gemfile-rails.4.2.x
  - gemfiles/Gemfile-rails.5.0.x

Install newest bundler on Travis
Install newest bundler on Travis

Plus, skip installing documentations
