.travis.yml in dentaku-2.0.7 vs .travis.yml in dentaku-2.0.8

@@ -1,14 +1,13 @@
 language: ruby
-before_install:
-  - gem update --system
-  - gem update bundler
+sudo: false
 rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.0
   - 2.1.1
   - 2.2.0
   - 2.2.1
   - 2.2.2
   - 2.2.3
+  - 2.3.0
   - rbx-2