.travis.yml in sk-fluent-plugin-azureeventhubs-0.0.14 vs .travis.yml in sk-fluent-plugin-azureeventhubs-0.0.15

@@ -7,9 +7,10 @@
   - 2.4.1
   - 2.5.0
   - ruby-head
 
 before_install:
+  - gem install bundler
   - gem update --system
 
 script:
   - bundle exec rake test