.travis.yml in polishgeeks-dev-tools-1.3.2 vs .travis.yml in polishgeeks-dev-tools-1.4.0

@@ -1,7 +1,6 @@
 language: ruby
 rvm:
-  - 2.1.10
-  - 2.2.4
-  - 2.3.0
+  - 2.2.6
+  - 2.3.3
 script:
   - bundle exec rake