.travis.yml in ajax-datatables-rails-0.4.0 vs .travis.yml in ajax-datatables-rails-0.4.1

@@ -1,47 +1,57 @@
 dist: trusty
 language: ruby
 sudo: required
 cache: bundler
 rvm:
-  - 2.2.7
-  - 2.3.4
+  - 2.2.10
+  - 2.3.7
 gemfile:
   - gemfiles/rails_4.0.13.gemfile
-  - gemfiles/rails_4.1.15.gemfile
-  - gemfiles/rails_4.2.8.gemfile
-  - gemfiles/rails_5.0.3.gemfile
-  - gemfiles/rails_5.1.1.gemfile
+  - gemfiles/rails_4.1.16.gemfile
+  - gemfiles/rails_4.2.10.gemfile
+  - gemfiles/rails_5.0.7.gemfile
+  - gemfiles/rails_5.1.6.gemfile
+  - gemfiles/rails_5.2.0.gemfile
 matrix:
   include:
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_4.2.8.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_4.2.10.gemfile
       env: DB_ADAPTER=postgresql
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.0.3.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.0.7.gemfile
       env: DB_ADAPTER=postgresql
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.1.1.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.1.6.gemfile
       env: DB_ADAPTER=postgresql
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_4.2.8.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.2.0.gemfile
+      env: DB_ADAPTER=postgresql
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_4.2.10.gemfile
       env: DB_ADAPTER=mysql2
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.0.3.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.0.7.gemfile
       env: DB_ADAPTER=mysql2
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.1.1.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.1.6.gemfile
       env: DB_ADAPTER=mysql2
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_4.2.8.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.2.0.gemfile
+      env: DB_ADAPTER=mysql2
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_4.2.10.gemfile
       env: DB_ADAPTER=oracle_enhanced
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.0.3.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.0.7.gemfile
       env: DB_ADAPTER=oracle_enhanced
-    - rvm: 2.4.1
-      gemfile: gemfiles/rails_5.1.1.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.1.6.gemfile
       env: DB_ADAPTER=oracle_enhanced
+    - rvm: 2.4.4
+      gemfile: gemfiles/rails_5.2.0.gemfile
+      env: DB_ADAPTER=oracle_enhanced
 after_success:
   - bundle exec codeclimate-test-reporter
 services:
   - postgresql
   - mysql
@@ -51,9 +61,11 @@
     packages:
     - mysql-server-5.6
     - mysql-client-core-5.6
     - mysql-client-5.6
 before_install:
+  - gem update --system
+  - gem install bundler
   - sh -c "if [ '$DB_ADAPTER' = 'mysql2' ]; then mysql -e 'create database ajax_datatables_rails;'; fi"
   - sh -c "if [ '$DB_ADAPTER' = 'postgresql' ]; then psql -c 'create database ajax_datatables_rails;' -U postgres; fi"
   - sh -c "if [ '$DB_ADAPTER' = 'oracle_enhanced' ]; then ./spec/install_oracle.sh; fi"
 env:
   global: