Add a ruby 2.4.0 build.

arthurschreiber · web-flow · commit 98f734cab5df · 2017-01-11T10:21:07.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -9,6 +9,7 @@ rvm:
   - 2.1.8
   - 2.2.4
   - 2.3.0
+  - 2.4.0
   - ruby-head
   - rbx-2
 

-Original file line number
+Diff line change
   - 2.1.8
   - 2.2.4
   - 2.3.0
 +  - 2.4.0
   - ruby-head
   - rbx-2