.travis.yml in fat_period-1.0.0 vs .travis.yml in fat_period-1.0.2

@@ -1,5 +1,8 @@
-sudo: false
 language: ruby
 rvm:
   - 2.3.0
-before_install: gem install bundler -v 1.14.3
+  - 2.4
+  - 2.5
+  - 2.6
+  - 2.7
+  - ruby-head