adhere to rubocop guidelines

config/initializers/application_controller_renderer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # ActiveSupport::Reloader.to_prepare do

config/initializers/assets.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.

config/initializers/backtrace_silencers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.

config/initializers/cookies_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Specify a serializer for the signed and encrypted cookie jars.

config/initializers/filter_parameter_logging.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Configure sensitive parameters which will be filtered from the log file.

config/initializers/html5.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Send a request to check if the HTML5 client is enabled on the BigBlueButton server.
 uri = URI.parse(Rails.configuration.bigbluebutton_endpoint.gsub('bigbluebutton/api', 'html5client/check'))
 res = Net::HTTP.get_response(uri)

config/initializers/inflections.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections

config/initializers/mime_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new mime types for use in respond_to blocks:

config/initializers/new_framework_defaults.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 #
 # This file contains migration options to ease your Rails 5.0 upgrade.

config/initializers/omniauth.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # List of supported Omniauth providers.
 Rails.application.config.providers = [:google, :twitter]
 
@@ -10,8 +12,8 @@ Rails.application.config.middleware.use OmniAuth::Builder do
   provider :twitter, ENV['TWITTER_ID'], ENV['TWITTER_SECRET']
 
   provider :google_oauth2, ENV['GOOGLE_OAUTH2_ID'], ENV['GOOGLE_OAUTH2_SECRET'],
-    scope: ['profile', 'email'],
+    scope: %w(profile email),
     access_type: 'online',
     name: 'google',
     hd: ENV['GOOGLE_OAUTH2_HD'].blank? ? nil : ENV['GOOGLE_OAUTH2_HD']
-end
+end

config/initializers/session_store.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.session_store :cookie_store, key: '_greenlight-2_0_session'

config/initializers/terms.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Load terms and conditions.
 
 terms = "#{Rails.root}/config/terms.txt"

config/initializers/wrap_parameters.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # This file contains settings for ActionController::ParamsWrapper which