.travis.yml in sidekiq-status-0.6.0 vs .travis.yml in sidekiq-status-0.7.0

@@ -1,16 +1,11 @@
 language: ruby
 rvm:
-  - 2.0
-  - 2.1
   - 2.2
-  - rbx-2
+  - 2.3
+  - 2.4
 gemfile:
-  - gemfiles/Gemfile.sidekiq-2
   - Gemfile
 before_install:
   - gem update --system
   - gem update bundler
 services: redis
-matrix:
-  allow_failures:
-    - rvm: rbx-2