.travis.yml in asset_cloud-2.6.0 vs .travis.yml in asset_cloud-2.6.1

@@ -2,5 +2,11 @@
 before_install:
   - gem install bundler
 rvm:
   - '2.5'
   - '2.6'
+  - '2.7'
+
+matrix:
+  exclude:
+    rvm: '2.7'
+    gemfile: gemfiles/Gemfile.activerecord52