.travis.yml in configurations-2.2.0 vs .travis.yml in configurations-2.2.1

- old
+ new

@@ -1,16 +1,14 @@
 language: ruby
 branches:
   only:
     - master
 rvm:
-  - 1.9.2
-  - 1.9.3
   - 2.0.0
-  - 2.1.6
-  - 2.2.2
-  - rbx
+  - 2.1.10
+  - 2.2.5
+  - 2.3.1
+  - rbx-2
   - jruby-19mode
   - jruby-20mode
-  - jruby-head
 
 script: CODECLIMATE_REPO_TOKEN=36cf84c73264d3c361003f66903eec8aa5fb2b3494496f3a9676630518ecc9f9 rake