.travis.yml in activeadmin-0.6.5 vs .travis.yml in activeadmin-0.6.6

@@ -1,19 +1,16 @@
 script: bundle exec rake test
 rvm:
   - 1.9.3
-  - 2.0.0
-  - 2.2.0
+  - 2.2
 before_install:
   - gem update --system
   - gem --version
   - gem install bundler
 env:
   - RAILS=3.0.20
   - RAILS=3.1.12
   - RAILS=3.2.14
 matrix:
   exclude:
-    - rvm: 2.0.0
-      env: RAILS=3.0.20
-    - rvm: 2.2.0
+    - rvm: 2.2
       env: RAILS=3.0.20