language: ruby
cache: bundler
rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.2

language: ruby
cache: bundler
rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.2
  - rbx-2
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head

Add rubinius and ruby-head to the Travis config.
Add rubinius and ruby-head to the Travis config.

Allow ruby-head to fail for now.
