.rubocop.yml in shib-rack-0.2.0 vs .rubocop.yml in shib-rack-0.3.0

@@ -1,7 +1,9 @@
----
+inherit_gem:
+  aaf-gumboot: aaf-rubocop.yml
+
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRailsVersion: 4.0
 
 Style/FileName:
   Exclude:
     - lib/shib-rack.rb