.travis.yml in rapporteur-3.3.0 vs .travis.yml in rapporteur-3.4.0

@@ -1,11 +1,10 @@
 language: ruby
-cache:
-  directories:
-    - vendor/bundle
+sudo: false
+cache: bundler
 rvm:
   - 1.9.3
-  - 2.1.5
+  - 2.2.0
   - jruby-19mode
 gemfile:
   - gemfiles/rails3.2.gemfile
   - gemfiles/rails4.x.gemfile
   - gemfiles/sinatra1.x.gemfile