rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - ree

language: ruby
script: bundle exec rake
services: mongodb
rvm:
  - 1.8.7
  - 1.9.3
  - 2.0.0
  - ree
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head
Fix Travis CI config file.
Fix Travis CI config file.