.travis.yml in coach-0.4.0 vs .travis.yml in coach-0.4.1

- old
+ new

@@ -1,7 +1,8 @@
 language: ruby
 
 rvm:
+  - 2.3.0
   - 2.2
   - 2.1
   - 2.0.0
 
 sudo: false