.travis.yml in fluent-plugin-twitter-0.5.1 vs .travis.yml in fluent-plugin-twitter-0.5.2

- old
+ new

@@ -1,7 +1,18 @@
+sudo: false
 language: ruby
 
 rvm:
+  - 2.3.0
   - 2.2
   - 2.1
   - 2.0.0
   - 1.9.3
+
+before_install:
+  - gem update bundler
+
+gemfile:
+  - Gemfile
+  - gemfiles/fluentd_v0.10.gemfile
+  - gemfiles/fluentd_v0.12.gemfile
+