add ruby 2.4.0 to travis build matrix

Charlie Somerville · Charlie Somerville · commit 1cc54ddf70d9 · 2017-01-12T15:04:29.000+11:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,6 +15,7 @@ gemfile:
   - gemfiles/rails_3.gemfile
 
 rvm:
+  - 2.4.0
   - 2.3.1
   - 2.2.5
   - 2.1

-Original file line number
+Diff line change
   - gemfiles/rails_3.gemfile
 rvm:
 +  - 2.4.0
   - 2.3.1
   - 2.2.5
   - 2.1