.travis.yml in grape-rabl-0.4.2 vs .travis.yml in grape-rabl-0.4.3

@@ -1,14 +1,13 @@
+before_install: gem install bundler -v '1.15.0'
 rvm:
-  - 2.0.0
-  - 2.1.0
+  - 2.2.0
+  - 2.3.0
   - ruby-head
-  - jruby-19mode
-  - jruby-head
-  - rbx-2
 
 matrix:
+  include:
+    - rvm: 2.3.1
+      script:
+        - bundle exec danger
   allow_failures:
-    - rvm: jruby-19mode
-    - rvm: jruby-head
     - rvm: ruby-head
-    - rvm: rbx-2