language: ruby

rvm:
- 2.1
- 2.0.0
- 1.9.3
- ruby-head

matrix:
  allow_failures:
  - rvm: ruby-head

language: ruby

rvm:
- 2.1
- 2.2
- 2.3.4
- 2.4.1
- ruby-head

matrix:
  allow_failures:
  - rvm: ruby-head

Update Ruby versions in Travis
Update Ruby versions in Travis
