.rubocop.yml in receptacle-0.3.1 vs .rubocop.yml in receptacle-1.0.0

@@ -1,7 +1,11 @@
+require: rt_rubocop_defaults
+
 AllCops:
-  TargetRubyVersion: 2.1
+  TargetRubyVersion: 2.4
+  Exclude:
+    - Dangerfile
 
 Metrics/LineLength:
   Max: 99
   Exclude:
     - test/*
@@ -19,8 +23,5 @@
     - test/*
 
 Metrics/MethodLength:
   Exclude:
     - test/*
-
-Style/Documentation:
-  Enabled: false