.travis.yml in representable-3.0.1 vs .travis.yml in representable-3.0.2

@@ -1,7 +1,10 @@
+language: ruby
+cache: bundler
+sudo: false
 rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.1
-  - 2.2.3
+  - 2.3.1
 before_install:
-  - gem install bundler
\ No newline at end of file
+  - gem install bundler