Apply remaining rubocop fixes

Author: DavidS

.rubocop.yml

@@ -1,3 +1,5 @@
+inherit_from: .rubocop_todo.yml
+
 ---
 require:
 - rubocop-performance
@@ -89,6 +91,8 @@ Performance/CaseWhenSplat:
 Performance/Casecmp:
   Enabled: true
 Performance/CollectionLiteralInLoop:
+  Exclude:
+  - spec/**/*
   Enabled: true
 Performance/CompareWithBlock:
   Enabled: true
@@ -294,6 +298,8 @@ Metrics/AbcSize:
   Enabled: false
 Metrics/BlockLength:
   Enabled: false
+Metrics/BlockNesting:
+  Enabled: false
 Metrics/ClassLength:
   Enabled: false
 Metrics/CyclomaticComplexity:
@@ -308,6 +314,8 @@ Metrics/PerceivedComplexity:
   Enabled: false
 Migration/DepartmentName:
   Enabled: false
+Naming/AccessorMethodName:
+  Enabled: false
 Naming/BlockParameterName:
   Enabled: false
 Naming/HeredocDelimiterCase: