.travis.yml in ayadn-2.1 vs .travis.yml in ayadn-3.0

@@ -1,11 +1,10 @@
 language: ruby
 cache: bundler
 
 rvm:
+  - "2.2.3"
   - "2.2.0"
-  - "2.1.2"
-  - "2.1.1"
   - "2.1.0"
   - "2.0.0"
 
 script: 'bundle exec rake spec'