.travis.yml in marketplace-kit-0.1.4 vs .travis.yml in marketplace-kit-0.2.0

@@ -1,7 +1,8 @@
 language: ruby
 rvm:
-  - 2.0.0
+  - 2.1.0
+  - 2.3.4
   - 2.4.1
 env:
 script:
   - bundle exec rspec spec/