.travis.yml in fair_dice_roll-3.0.0 vs .travis.yml in fair_dice_roll-4.0.0

@@ -1,20 +1,23 @@
+before_install:
+  - gem update bundler rake
 branches:
   only:
     - master
+cache: bundler
 env:
   global:
     secure: | # CODECLIMATE_REPO_TOKEN
       EEoiWSHrAnv1VAlN6msYZPWcdKohINin6vmghWn54uvNcowgLwIr/0S5+Cx7
       YqY/iYA0OzELX5j5pTgMHLroG4kkbgTnBQe09pFGxhoqA0WOp/uZkyX6dFro
       yatmOosa1UUiw4aZogfjv2KdP18oILxV3d+lIfqZgUb7o9bTzbw=
 language: ruby
 matrix:
   allow_failures:
-    - rvm: 1.9.3
     - rvm: ruby-head
 rvm:
-  - 1.9.3
   - "2.0"
   - "2.1"
+  - "2.2"
   - ruby-head
 script: bundle exec rspec
+sudo: false