Updated rubocop bits.

Author: stas

.rubocop.yml

@@ -4,12 +4,21 @@ inherit_gem:
 
 require: rubocop-performance
 
+AllCops:
+  NewCops: enable
+
 Performance:
   Enabled: true
 
 Rails:
   Enabled: true
 
+Rails/Pluck:
+  Enabled: false
+
+Rails/NegateInclude:
+  Enabled: false
+
 Style/StringLiterals:
   Enabled: true
   EnforcedStyle: single_quotes

jsonapi.rb.gemspec

@@ -34,7 +34,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'jsonapi-rspec'
   spec.add_development_dependency 'yardstick'
   spec.add_development_dependency 'rubocop-rails_config'
-  spec.add_development_dependency 'rubocop'
+  spec.add_development_dependency 'rubocop', ENV['RUBOCOP_VERSION']
   spec.add_development_dependency 'simplecov'
   spec.add_development_dependency 'rubocop-performance'
 end