Use ruby 2.2.2 version

Fudoshiki · rafaelfranca · commit 1cb668af8f0e · 2015-09-03T16:47:08.000-03:00
diff --git a/.travis.yml b/.travis.yml
@@ -33,7 +33,7 @@ matrix:
     - rvm: rbx-2
   include:
     - gemfile: Gemfile
-      rvm: 2.2.1
+      rvm: 2.2.2
 
 notifications:
   email: false
