.travis.yml in public_suffix-1.3.3 vs .travis.yml in public_suffix-1.4.0

@@ -1,15 +1,11 @@
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
   - 2.0.0
-  - jruby-18mode
+  - 2.1.0
   - jruby-19mode
-  - rbx-18mode
   - rbx-19mode
-  - ree
 notifications:
   recipients:
     - [e-mail]
 matrix:
   allow_failures: