restrict ruby testing to version 2.3.3

atomic111 · atomic111 · commit aa220d4793c6 · 2017-04-04T11:11:15.000+02:00
Signed-off-by: Patrick Münch &lt;patrick.muench1111@gmail.com&gt;
diff --git a/.travis.yml b/.travis.yml
@@ -2,9 +2,7 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.0
-  - 2.2
-  - 2.3.1
+  - 2.3.3
 
 bundler_args: --without integration
 script: bundle exec rake
