.travis.yml in kindle_manager-0.1.0 vs .travis.yml in kindle_manager-0.1.1

@@ -1,5 +1,7 @@
 sudo: false
 language: ruby
 rvm:
   - 2.2.4
+  - 2.2.6
+  - 2.3.3
 before_install: gem install bundler -v 1.14.6