.travis.yml in test-kitchen-1.5.0.rc.1 vs .travis.yml in test-kitchen-1.5.0

@@ -1,38 +1,30 @@
 language: ruby
 
 rvm:
-  - 2.2.3
-  - 2.1
+  - 2.2.4
+  - 2.1.8
   - 2.0.0
   - ruby-head
 
-env:
-  - RUBYGEMS_VERSION=
-  - RUBYGEMS_VERSION=2.4.5
-  - RUBYGEMS_VERSION=2.2.2
-  - RUBYGEMS_VERSION=2.1.11
-  - RUBYGEMS_VERSION=2.0.14
-  - RUBYGEMS_VERSION=1.8.29
-
 before_install:
-  - if [ -n "$RUBYGEMS_VERSION" ]; then gem update --system $RUBYGEMS_VERSION; fi
   - gem --version
 
 bundler_args: --without guard
 
 sudo: false
 
 matrix:
   include:
-    - rvm: 2.2
+    - rvm: 2.2.4
       sudo: required
       dist: trusty
       # To run the proxy tests we need additional gems than what Test Kitchen normally uses
       # for testing
       gemfile: Gemfile.proxy_tests
       before_install:
+        - gem install bundler
         - sudo apt-get update
         - sudo apt-get -y install squid3 git curl
       env:
         # ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY']
         - secure: "E7h427Y8z6Nx5sdrA4Ye9gO9pDGpe4jxfhJdM4HPJIM/FSkEJM0ZDPdvhQ6QAQ1S1AHja/JhQUFaNP5NzKhRkVqGCzunBBC6RVb7pp1Qo16EMhJkg7LEsExiSsjQykAzt2w6K/71V+mIlMKxCPYdpu6PT/8w/jZFgBqLEHXuogU="
@@ -49,30 +41,9 @@
         - cat /tmp/out.txt
         - sudo cat /var/log/squid3/cache.log
         - sudo cat /var/log/squid3/access.log
   allow_failures:
     - rvm: ruby-head
-  exclude:
-    - rvm: 2.2
-      env: RUBYGEMS_VERSION=2.2.2
-    - rvm: 2.2
-      env: RUBYGEMS_VERSION=2.1.11
-    - rvm: 2.2
-      env: RUBYGEMS_VERSION=2.0.14
-    - rvm: 2.2
-      env: RUBYGEMS_VERSION=1.8.29
-    - rvm: 2.1
-      env: RUBYGEMS_VERSION=1.8.29
-    - rvm: 2.0.0
-      env: RUBYGEMS_VERSION=1.8.29
-    - rvm: ruby-head
-      env: RUBYGEMS_VERSION=2.2.2
-    - rvm: ruby-head
-      env: RUBYGEMS_VERSION=2.1.11
-    - rvm: ruby-head
-      env: RUBYGEMS_VERSION=2.0.14
-    - rvm: ruby-head
-      env: RUBYGEMS_VERSION=1.8.29
 
 notifications:
   irc: "chat.freenode.net#kitchenci"
 
 addons: