Update tested ruby versions

pixeltrix · pixeltrix · commit 34a82b4da338 · 2017-01-04T15:31:47.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -10,9 +10,10 @@ before_install:
 rvm:
   - 1.9.3
   - 2.0.0
-  - 2.1.8
-  - 2.2.5
-  - 2.3.1
+  - 2.1.9
+  - 2.2.6
+  - 2.3.3
+  - 2.4.0
 
 gemfile:
   - Gemfile

-Original file line number
+Diff line change
 rvm:
   - 1.9.3
   - 2.0.0
 -  - 2.1.8
 -  - 2.2.5
 -  - 2.3.1
 +  - 2.1.9
 +  - 2.2.6
 +  - 2.3.3
 +  - 2.4.0
 gemfile:
   - Gemfile