script: rake test
rvm:
  - 1.8.7
  - 1.9.3
  - 2.0.0
  - ruby-head

matrix:
  allow_failures:
    - rvm: ruby-head

script: rake test
rvm:
  - 1.8.7
  - 1.9.3
  - 2.0.0
  - 2.1.0
  - ruby-head

matrix:
  allow_failures:
    - rvm: ruby-head

Add Ruby 2.1.0 to Travis CI test matrix
Add Ruby 2.1.0 to Travis CI test matrix