Rubocops that didn't need code changes

Author: moleske

.rubocop_cc.yml

@@ -143,6 +143,8 @@ Rails/SkipsModelValidations: # We don`t want any model at all in migrations and
     - spec/migrations/**/*
 
 #### ENABLED SECTION
+Gemspec/AttributeAssignment:
+  Enabled: true
 Gemspec/DeprecatedAttributeAssignment:
   Enabled: true
 Gemspec/DevelopmentDependencies:
@@ -239,8 +241,12 @@ Lint/UnexpectedBlockArity:
   Enabled: true
 Lint/UnmodifiedReduceAccumulator:
   Enabled: true
+Lint/UselessDefaultValueArgument:
+  Enabled: true
 Lint/UselessDefined:
   Enabled: true
+Lint/UselessOr:
+  Enabled: true
 Lint/UselessRescue:
   Enabled: true
 Lint/UselessRuby2Keywords:
@@ -259,6 +265,8 @@ Style/ArgumentsForwarding:
   Enabled: true
 Style/ArrayIntersect:
   Enabled: true
+Style/ArrayIntersectWithSingleElement:
+  Enabled: true
 Style/BitwisePredicate:
   Enabled: true
 Style/CollectionCompact:
@@ -281,6 +289,8 @@ Style/DocumentDynamicEvalDefinition:
   Enabled: true
 Style/EmptyHeredoc:
   Enabled: true
+Style/EmptyStringInsideInterpolation:
+  Enabled: true
 Style/EndlessMethod:
   Enabled: true
 Style/EnvHome:
@@ -349,6 +359,8 @@ Style/RedundantArgument:
   Enabled: true
 Style/RedundantArrayConstructor:
   Enabled: true
+Style/RedundantArrayFlatten:
+  Enabled: true
 Style/RedundantConstantBase:
   Enabled: true
 Style/RedundantCurrentDirectoryInPath:
@@ -425,6 +437,8 @@ Rails/ExpandedDateRange:
   Enabled: true
 Rails/FindById:
   Enabled: true
+Rails/FindByOrAssignmentMemoization:
+  Enabled: true
 Rails/FreezeTime:
   Enabled: true
 Rails/I18nLazyLookup:
@@ -447,6 +461,8 @@ Rails/MultipleRoutePaths:
   Enabled: true
 Rails/NegateInclude:
   Enabled: true
+Rails/OrderArguments:
+  Enabled: true
 Rails/Pluck:
   Enabled: true
 Rails/PluckInWhere: