.travis.yml in unread-0.7.1 vs .travis.yml in unread-0.8.0

@@ -1,17 +1,33 @@
 language: ruby
 rvm:
   - 1.9.3
-  - 2.0
-  - 2.1
-  - 2.2
+  - 2.0.0
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
 gemfile:
-  - ci/Gemfile-rails-3-0
-  - ci/Gemfile-rails-3-1
-  - ci/Gemfile-rails-3-2
-  - ci/Gemfile-rails-4-0
-  - ci/Gemfile-rails-4-1
-  - ci/Gemfile-rails-4-2
+  - gemfiles/rails_5_0.gemfile
+  - gemfiles/rails_4_2.gemfile
+  - gemfiles/rails_4_1.gemfile
+  - gemfiles/rails_4_0.gemfile
+  - gemfiles/rails_3_2.gemfile
+  - gemfiles/rails_3_1.gemfile
+  - gemfiles/rails_3_0.gemfile
+matrix:
+  exclude:
+    - rvm: 1.9.3
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: 2.0.0
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: 2.1.8
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: 2.3.0
+      gemfile: gemfiles/rails_3_0.gemfile
+    - rvm: 2.3.0
+      gemfile: gemfiles/rails_3_1.gemfile
+    - rvm: 2.3.0
+      gemfile: gemfiles/rails_3_2.gemfile
 before_install: gem update bundler
 sudo: false
 env:
   - DB=sqlite
   - DB=mysql