.travis.yml in sidekiq-2.5.4 vs .travis.yml in sidekiq-2.6.0

@@ -1,10 +1,11 @@
 language: ruby
 rvm:
   - 1.9.3
   - jruby-19mode
   - rbx-19mode
+  - 2.0.0
 branches:
   only:
     - master
 notifications:
   irc: "irc.freenode.org#sidekiq"
@@ -13,5 +14,6 @@
       - [e-mail]
 matrix:
   allow_failures:
     - rvm: jruby-19mode
     - rvm: rbx-19mode
+    - rvm: 2.0.0