.travis.yml in asynchronic-0.3.0 vs .travis.yml in asynchronic-0.3.1

@@ -1,8 +1,11 @@
 language: ruby
 rvm:
   - 2.0
   - 2.1
   - 2.2
+  - 2.3.0
   - jruby
 services:
-  - redis-server
+  - redis-server
+before_install:
+  - gem install bundler
\ No newline at end of file