.travis.yml in appbundler-0.9.0 vs .travis.yml in appbundler-0.10.0

@@ -1,16 +1,14 @@
 before_install:
   - gem update --system
   - gem install bundler
 
 rvm:
-  - 2.0.0
-  - 2.1.1
-  - 2.2
+  - 2.2.5
+  - 2.3.1
 
 branches:
   only:
     - master
 
 # The integration tests need to see installed gems.
 script: rspec --color --format progress
-