rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - 2.0.0
  - jruby-18mode
  - jruby-19mode
  - rbx-18mode
  - rbx-19mode

rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.0
  - jruby-1.7.9
  - rbx-2.1.1

Test on some newer Rubies, and drop support for older ones
Test on some newer Rubies, and drop support for older ones
