language: ruby
rvm:
  - ruby-head
  - 1.9.3
install:
  - gem install minitest
script:
  - rake test

language: ruby
rvm:
  - 2.2.3
  - 2.1.7
  - 2.0.0
  - 1.9.3
before_install: gem install bundler -v 1.10.6
script:
  - rake test

Update config for Travis CI
Update config for Travis CI

- Explicitely test the latest 3 stable rubies.
- Do not install minitest via travis (already a development dependency).
- Ensure that the latest bundler is present.
