.travis.yml in input_sanitizer-0.3.33 vs .travis.yml in input_sanitizer-0.4.0

@@ -1,9 +1,8 @@
 language: ruby
 script: bundle exec rspec spec
 rvm:
-  - 1.8.7
-  - 1.9.3
   - 2.0.0
   - 2.1.0
   - 2.2.0
+  - 2.5.8
   - jruby-19mode