.travis.yml in wolverine-0.3.4 vs .travis.yml in wolverine-0.3.5

@@ -1,10 +1,11 @@
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
-  - jruby-18mode
+  - 2.0.0
+  - 2.1.10
+  - 2.2.7
+  - 2.3.4
+  - 2.4.1
+  - ruby-head
   - jruby-19mode
-  - rbx-18mode
-  - rbx-19mode
-
+  - jruby-9.1.9.0