.travis.yml in oop-interface-0.1.0 vs .travis.yml in oop-interface-0.1.1

@@ -1,5 +1,6 @@
 sudo: false
 language: ruby
 rvm:
   - 2.3.3
-before_install: gem install bundler -v 1.16.0
+  - ruby-head
+script: bundle exec rake