.travis.yml in rom-3.2.1 vs .travis.yml in rom-3.2.2

@@ -5,21 +5,17 @@
 bundler_args: --without sql benchmarks console tools
 script: "bundle exec rake ci"
 after_success:
   - '[ -d coverage ] && bundle exec codeclimate-test-reporter'
 rvm:
-  - 2.2.6
-  - 2.3.3
+  - 2.2.7
+  - 2.3.4
   - 2.4.1
-  - rbx-3
   - jruby
 env:
   global:
     - JRUBY_OPTS='--dev -J-Xmx1024M'
     - COVERAGE='true'
-matrix:
-  allow_failures:
-    - rvm: rbx-3
 notifications:
   webhooks:
     urls:
       - https://webhooks.gitter.im/e/39e1225f489f38b0bd09
     on_success: change