update to ruby 2.3.1

JonRowe · JonRowe · commit 85ce5f7fe361 · 2016-05-03T22:28:43.000+10:00
diff --git a/travis/.travis.yml b/travis/.travis.yml
@@ -16,7 +16,7 @@ rvm:
   - 2.0.0
   - 2.1
   - 2.2
-  - 2.3.0
+  - 2.3.1
   - ruby-head
   - ree
   - rbx

-Original file line number
+Diff line change
   - 2.0.0
   - 2.1
   - 2.2
 -  - 2.3.0
 +  - 2.3.1
   - ruby-head
   - ree
   - rbx