rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.10
  - 2.2.8
  - 2.3.5
  - 2.4.2
  - ruby-head
  - jruby-19mode
  - rbx-3

rvm:
  - 2.0.0
  - 2.1.10
  - 2.2.8
  - 2.3.5
  - 2.4.2
  - ruby-head
  - jruby-19mode
  - rbx-3

Drop ruby 1.9.3 from CI for activesupport 5.n
Drop ruby 1.9.3 from CI for activesupport 5.n
