.travis.yml in review-1.4.0 vs .travis.yml in review-1.5.0

@@ -1,9 +1,10 @@
 rvm:
   - 1.8.7
   - 1.9.3
   - 2.0.0
   - 2.1.*
+  - 2.2.*
 
 branches:
   only:
     - master