.travis.yml in surrounded-0.9.0 vs .travis.yml in surrounded-0.9.1

@@ -1,8 +1,9 @@
 language: ruby
 rvm:
   - 2.0.0
   - 2.1.1
+  - 2.2.0
   - ruby-head
   - jruby-head
   - rbx
 env:
 - COVERALLS=true