.travis.yml in fluent-plugin-mysql-replicator-0.4.3 vs .travis.yml in fluent-plugin-mysql-replicator-0.5.0

- old
+ new

@@ -1,7 +1,8 @@
 language: ruby
 
 rvm:
+  - 2.2
   - 2.1
   - 2.0.0
   - 1.9.3
 
 services: