rubocop-rails 2.4.0 on Ruby Gems

#123: Add new Rails/ApplicationController and Rails/ApplicationMailer cops. (@eugeneius)
#130: Add new Rails/RakeEnvironment cop. (@pocke)
#133: Add new Rails/SafeNavigationWithBlank cop. (@gyfis)

#120: Fix message for Rails/SaveBang when the save is in the body of a conditional. (@jas14)
#131: Fix an incorrect autocorrect for Rails/Presence when using [] method. (@forresty)
#142: Fix an incorrect autocorrect for Rails/EnumHash when using nested constants. (@koic)
#136: Fix a false positive for Rails/ReversibleMigration when using change_default with :from and :to options. (@sinsoku)
#144: Fix a false positive for Rails/ReversibleMigration when using change_table_comment or change_column_comment with a :from and :to hash. (@DNA)

#156: Make Rails/UnknownEnv cop aware of Rails.env == 'unknown_env'. (@pocke)
#141: Change default of EnforcedStyle from arguments to slashes for Rails/FilePath. (@koic)

rubocop-rails 2.4.0 RuboCop Rails 2.4.0 on Ruby Gems