.travis.yml in scripterator-1.3.2 vs .travis.yml in scripterator-1.4.0.beta1

- old
+ new

@@ -1,9 +1,10 @@
 language: ruby
 rvm:
-  - 2.5.0
+  - 2.5.8
 script: bundle exec rspec
+gemfile:
+  - Gemfile-rails-4.2.x
+  - Gemfile-rails-5.0.x
+  - Gemfile-rails-5.1.x
+  - Gemfile-rails-5.2.x
 
-env:
-  - 'RAILS_VERSION=4.2'
-  - 'RAILS_VERSION=5.0'
-  - 'RAILS_VERSION=5.1'