.travis.yml in rest-in-peace-5.0.2 vs .travis.yml in rest-in-peace-5.1.0

@@ -1,16 +1,22 @@
 language: ruby
 cache: bundler
 rvm:
-  - 1.9.3
   - 2.0.0
   - 2.1.2
-  - 2.2.4
-  - 2.3.0
+  - 2.2.5
+  - 2.3.1
 gemfile:
   - gemfiles/Gemfile.activemodel-3.2.x
   - gemfiles/Gemfile.activemodel-4.0.x
   - gemfiles/Gemfile.activemodel-4.1.x
   - gemfiles/Gemfile.activemodel-4.2.x
+  - gemfiles/Gemfile.activemodel-5.0.x
 script:
   - bundle exec rake spec
 before_install: gem install bundler
+matrix:
+  exclude:
+    - rvm: 2.0.0
+      gemfile: gemfiles/Gemfile.activemodel-5.0.x
+    - rvm: 2.1.2
+      gemfile: gemfiles/Gemfile.activemodel-5.0.x