Add Ruby 2.4.1 to Travis build matrix

rbishop · rbishop · commit bd92d70cc9c9 · 2017-05-01T14:13:36.000-06:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,6 +7,7 @@ rvm:
   - 2.1.0
   - 2.2.5
   - 2.3.1
+  - 2.4.1
 
 before_script:
   - git submodule update --remote --recursive
