.travis.yml in logical_query_parser-0.1.0 vs .travis.yml in logical_query_parser-0.2.0

@@ -1,5 +1,12 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.3.1
-before_install: gem install bundler -v 1.12.5
+  - 2.3.4
+  - 2.4.1
+gemfile:
+  - gemfiles/rails42.gemfile
+  - gemfiles/rails50.gemfile
+  - gemfiles/rails51.gemfile
+before_install:
+  - gem install bundler -v 1.15.3
+script: bundle exec rspec