.travis.yml in jb-0.7.0 vs .travis.yml in jb-0.7.1

@@ -1,15 +1,24 @@
-sudo: false
 language: ruby
 
-before_install: "gem uni -x -i /home/travis/.rvm/gems/ruby-2.5.5@global bundler && gem i bundler -v '<2'"
-
 rvm:
-  - 2.6.2
-  - 2.5.5
+  - 2.7.0
+  - 2.6.5
+  - 2.5.7
 
 gemfile:
   - gemfiles/rails_60.gemfile
   - gemfiles/rails_52.gemfile
   - gemfiles/rails_51.gemfile
   - gemfiles/rails_50.gemfile
   - gemfiles/rails_42.gemfile
+
+matrix:
+  exclude:
+    - rvm: 2.7.0
+      gemfile: gemfiles/rails_52.gemfile
+    - rvm: 2.7.0
+      gemfile: gemfiles/rails_51.gemfile
+    - rvm: 2.7.0
+      gemfile: gemfiles/rails_50.gemfile
+    - rvm: 2.7.0
+      gemfile: gemfiles/rails_42.gemfile