.travis.yml in solrizer-3.4.0 vs .travis.yml in solrizer-3.4.1

@@ -1,11 +1,6 @@
-rvm:
-  - 2.0.0
-  - 2.1
-  - 2.2.1
+language: ruby
 sudo: false
-
-gemfile:
-  - gemfiles/gemfile.rails4
-
-notifications:
-  irc: "irc.freenode.org#projecthydra"
+rvm:
+  - 2.4.0
+  - 2.3.3
+  - 2.2.6