language: ruby
rvm:
  - 1.9
  - 2.0
  - 2.1
  - 2.2
  - 2.3
  - 2.4

language: ruby
rvm:
  - 1.9
  - 2.0
  - 2.1
  - 2.2
  - 2.3
  # - 2.4

Remove Ruby 2.4 while Travis is not ready.
Remove Ruby 2.4 while Travis is not ready.
