diff --git a/.gitignore b/.gitignore
index 145a5e8..7724faf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
 .bundle
 pkg
 .rvmrc
+.ruby-version
+.ruby-gemset
 Gemfile.lock
 spec/dummy/log/*.log
-spec/dummy/tmp/
\ No newline at end of file
+spec/dummy/tmp/
diff --git a/spec/dummy/bin/bundle b/spec/dummy/bin/bundle
new file mode 100755
index 0000000..66e9889
--- /dev/null
+++ b/spec/dummy/bin/bundle
@@ -0,0 +1,3 @@
+#!/usr/bin/env ruby
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+load Gem.bin_path('bundler', 'bundle')
diff --git a/spec/dummy/bin/rails b/spec/dummy/bin/rails
new file mode 100755
index 0000000..5191e69
--- /dev/null
+++ b/spec/dummy/bin/rails
@@ -0,0 +1,4 @@
+#!/usr/bin/env ruby
+APP_PATH = File.expand_path('../../config/application', __FILE__)
+require_relative '../config/boot'
+require 'rails/commands'
diff --git a/spec/dummy/bin/rake b/spec/dummy/bin/rake
new file mode 100755
index 0000000..1724048
--- /dev/null
+++ b/spec/dummy/bin/rake
@@ -0,0 +1,4 @@
+#!/usr/bin/env ruby
+require_relative '../config/boot'
+require 'rake'
+Rake.application.run
diff --git a/spec/dummy/bin/setup b/spec/dummy/bin/setup
new file mode 100755
index 0000000..acdb2c1
--- /dev/null
+++ b/spec/dummy/bin/setup
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'pathname'
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+
+Dir.chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file:
+
+  puts "== Installing dependencies =="
+  system "gem install bundler --conservative"
+  system "bundle check || bundle install"
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?("config/database.yml")
+  #   system "cp config/database.yml.sample config/database.yml"
+  # end
+
+  puts "\n== Preparing database =="
+  system "bin/rake db:setup"
+
+  puts "\n== Removing old logs and tempfiles =="
+  system "rm -f log/*"
+  system "rm -rf tmp/cache"
+
+  puts "\n== Restarting application server =="
+  system "touch tmp/restart.txt"
+end
diff --git a/spec/dummy/config/application.rb b/spec/dummy/config/application.rb
index f58029b..56e566e 100644
--- a/spec/dummy/config/application.rb
+++ b/spec/dummy/config/application.rb
@@ -5,16 +5,27 @@
 require 'action_mailer/railtie'
 require 'active_model/railtie'
 
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)
 
 require 'invisible_captcha'
 
 module Dummy
   class Application < Rails::Application
-    config.encoding = 'utf-8'
-    config.filter_parameters += [:password]
-    config.assets.enabled = true
-    config.assets.version = '1.0'
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+
+    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
+    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
+    # config.time_zone = 'Central Time (US & Canada)'
+
+    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
+    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    # config.i18n.default_locale = :de
+
+    # Do not swallow errors in after_commit/after_rollback callbacks.
+    # config.active_record.raise_in_transactional_callbacks = true
   end
 end
-
diff --git a/spec/dummy/config/boot.rb b/spec/dummy/config/boot.rb
index d385f4e..6b750f0 100644
--- a/spec/dummy/config/boot.rb
+++ b/spec/dummy/config/boot.rb
@@ -1,5 +1,3 @@
-# Set up gems listed in the Gemfile.
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../../../Gemfile', __FILE__)
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
-$LOAD_PATH.unshift File.expand_path('../../../../lib', __FILE__)
\ No newline at end of file
+require 'bundler/setup' # Set up gems listed in the Gemfile.
diff --git a/spec/dummy/config/environment.rb b/spec/dummy/config/environment.rb
index 3da5eb9..ee8d90d 100644
--- a/spec/dummy/config/environment.rb
+++ b/spec/dummy/config/environment.rb
@@ -1,5 +1,5 @@
-# Load the rails application
+# Load the Rails application.
 require File.expand_path('../application', __FILE__)
 
-# Initialize the rails application
-Dummy::Application.initialize!
+# Initialize the Rails application.
+Rails.application.initialize!
diff --git a/spec/dummy/config/environments/development.rb b/spec/dummy/config/environments/development.rb
index 19920c4..12293d7 100644
--- a/spec/dummy/config/environments/development.rb
+++ b/spec/dummy/config/environments/development.rb
@@ -1,30 +1,41 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded on
   # every request. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
   config.cache_classes = false
 
-  # Log error messages when you accidentally call methods on nil.
-  config.whiny_nils = true
+  # Do not eager load code on boot.
+  config.eager_load = false
 
-  # Show full error reports and disable caching
+  # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
-  # Don't care if the mailer can't send
+  # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
 
-  # Print deprecation notices to the Rails logger
+  # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
-  # Only use best-standards-support built into browsers
-  config.action_dispatch.best_standards_support = :builtin
+  # Raise an error on page load if there are pending migrations.
+  # config.active_record.migration_error = :page_load
 
-  # Do not compress assets
-  config.assets.compress = false
-
-  # Expands the lines which load the assets
+  # Debug mode disables concatenation and preprocessing of assets.
+  # This option may cause significant delays in view rendering with a large
+  # number of complex assets.
   config.assets.debug = true
+
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
+  config.assets.digest = true
+
+  # Adds additional error checking when serving assets at runtime.
+  # Checks for improperly declared sprockets dependencies.
+  # Raises helpful error messages.
+  config.assets.raise_runtime_errors = true
+
+  # Raises error for missing translations
+  # config.action_view.raise_on_missing_translations = true
 end
diff --git a/spec/dummy/config/environments/production.rb b/spec/dummy/config/environments/production.rb
index bdac56a..a01b88d 100644
--- a/spec/dummy/config/environments/production.rb
+++ b/spec/dummy/config/environments/production.rb
@@ -1,67 +1,79 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
 
-  # Code is not reloaded between requests
+  # Code is not reloaded between requests.
   config.cache_classes = true
 
-  # Full error reports are disabled and caching is turned on
+  # Eager load code on boot. This eager loads most of Rails and
+  # your application in memory, allowing both threaded web servers
+  # and those relying on copy on write to perform better.
+  # Rake tasks automatically ignore this option for performance.
+  config.eager_load = true
+
+  # Full error reports are disabled and caching is turned on.
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
 
-  # Disable Rails's static asset server (Apache or nginx will already do this)
-  config.serve_static_assets = false
+  # Enable Rack::Cache to put a simple HTTP cache in front of your application
+  # Add `rack-cache` to your Gemfile before enabling this.
+  # For large-scale production use, consider using a caching reverse proxy like
+  # NGINX, varnish or squid.
+  # config.action_dispatch.rack_cache = true
+
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
-  # Compress JavaScripts and CSS
-  config.assets.compress = true
+  # Compress JavaScripts and CSS.
+  config.assets.js_compressor = :uglifier
+  # config.assets.css_compressor = :sass
 
-  # Don't fallback to assets pipeline if a precompiled asset is missed
+  # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # Generate digests for assets URLs
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
   config.assets.digest = true
 
-  # Defaults to nil and saved in location specified by config.assets.prefix
-  # config.assets.manifest = YOUR_PATH
+  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
 
-  # Specifies the header that your server uses for sending files
-  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
-  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+  # Specifies the header that your server uses for sending files.
+  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   # config.force_ssl = true
 
-  # See everything in the log (default is :info)
-  # config.log_level = :debug
+  # Use the lowest log level to ensure availability of diagnostic information
+  # when problems arise.
+  config.log_level = :debug
 
-  # Prepend all log lines with the following tags
+  # Prepend all log lines with the following tags.
   # config.log_tags = [ :subdomain, :uuid ]
 
-  # Use a different logger for distributed setups
+  # Use a different logger for distributed setups.
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
-  # Use a different cache store in production
+  # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
-  # Enable serving of images, stylesheets, and JavaScripts from an asset server
-  # config.action_controller.asset_host = "http://assets.example.com"
-
-  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
-  # config.assets.precompile += %w( search.js )
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  # config.action_controller.asset_host = 'http://assets.example.com'
 
-  # Disable delivery errors, bad email addresses will be ignored
+  # Ignore bad email addresses and do not raise email delivery errors.
+  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
   # config.action_mailer.raise_delivery_errors = false
 
-  # Enable threaded mode
-  # config.threadsafe!
-
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
-  # the I18n.default_locale when a translation can not be found)
+  # the I18n.default_locale when a translation cannot be found).
   config.i18n.fallbacks = true
 
-  # Send deprecation notices to registered listeners
+  # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
-  # Log the query plan for queries taking more than this (works
-  # with SQLite, MySQL, and PostgreSQL)
-  # config.active_record.auto_explain_threshold_in_seconds = 0.5
+  # Use default logging formatter so that PID and timestamp are not suppressed.
+  config.log_formatter = ::Logger::Formatter.new
+
+  # Do not dump schema after migrations.
+  # config.active_record.dump_schema_after_migration = false
 end
diff --git a/spec/dummy/config/environments/test.rb b/spec/dummy/config/environments/test.rb
index 2a0783b..1c19f08 100644
--- a/spec/dummy/config/environments/test.rb
+++ b/spec/dummy/config/environments/test.rb
@@ -1,5 +1,5 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
 
   # The test environment is used exclusively to run your application's
   # test suite. You never need to work with it otherwise. Remember that
@@ -7,28 +7,36 @@
   # and recreated between test runs. Don't rely on the data there!
   config.cache_classes = true
 
-  # Configure static asset server for tests with Cache-Control for performance
-  config.serve_static_assets = true
-  config.static_cache_control = "public, max-age=3600"
+  # Do not eager load code on boot. This avoids loading your whole application
+  # just for the purpose of running a single test. If you are using a tool that
+  # preloads Rails for running tests, you may have to set it to true.
+  config.eager_load = false
 
-  # Log error messages when you accidentally call methods on nil
-  config.whiny_nils = true
+  # Configure static file server for tests with Cache-Control for performance.
+  config.serve_static_files   = true
+  config.static_cache_control = 'public, max-age=3600'
 
-  # Show full error reports and disable caching
+  # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
-  # Raise exceptions instead of rendering exception templates
+  # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
 
-  # Disable request forgery protection in test environment
-  config.action_controller.allow_forgery_protection    = false
+  # Disable request forgery protection in test environment.
+  config.action_controller.allow_forgery_protection = false
 
   # Tell Action Mailer not to deliver emails to the real world.
   # The :test delivery method accumulates sent emails in the
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
-  # Print deprecation notices to the stderr
+  # Randomize the order test cases are executed.
+  config.active_support.test_order = :random
+
+  # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
+
+  # Raises error for missing translations
+  # config.action_view.raise_on_missing_translations = true
 end
diff --git a/spec/dummy/config/initializers/assets.rb b/spec/dummy/config/initializers/assets.rb
new file mode 100644
index 0000000..01ef3e6
--- /dev/null
+++ b/spec/dummy/config/initializers/assets.rb
@@ -0,0 +1,11 @@
+# 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.
+Rails.application.config.assets.version = '1.0'
+
+# Add additional assets to the asset load path
+# Rails.application.config.assets.paths << Emoji.images_path
+
+# Precompile additional assets.
+# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
+# Rails.application.config.assets.precompile += %w( search.js )
diff --git a/spec/dummy/config/initializers/cookies_serializer.rb b/spec/dummy/config/initializers/cookies_serializer.rb
new file mode 100644
index 0000000..ac5f8b6
--- /dev/null
+++ b/spec/dummy/config/initializers/cookies_serializer.rb
@@ -0,0 +1,3 @@
+# Be sure to restart your server when you modify this file.
+
+Rails.application.config.action_dispatch.cookies_serializer = :marshal
diff --git a/spec/dummy/config/initializers/filter_parameter_logging.rb b/spec/dummy/config/initializers/filter_parameter_logging.rb
new file mode 100644
index 0000000..4a994e1
--- /dev/null
+++ b/spec/dummy/config/initializers/filter_parameter_logging.rb
@@ -0,0 +1,4 @@
+# Be sure to restart your server when you modify this file.
+
+# Configure sensitive parameters which will be filtered from the log file.
+Rails.application.config.filter_parameters += [:password]
diff --git a/spec/dummy/config/initializers/inflections.rb b/spec/dummy/config/initializers/inflections.rb
index 5d8d9be..ac033bf 100644
--- a/spec/dummy/config/initializers/inflections.rb
+++ b/spec/dummy/config/initializers/inflections.rb
@@ -1,15 +1,16 @@
 # Be sure to restart your server when you modify this file.
 
-# Add new inflection rules using the following format
-# (all these examples are active by default):
-# ActiveSupport::Inflector.inflections do |inflect|
+# Add new inflection rules using the following format. Inflections
+# are locale specific, and you may define rules for as many different
+# locales as you wish. All of these examples are active by default:
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
 #   inflect.plural /^(ox)$/i, '\1en'
 #   inflect.singular /^(ox)en/i, '\1'
 #   inflect.irregular 'person', 'people'
 #   inflect.uncountable %w( fish sheep )
 # end
-#
+
 # These inflection rules are supported but not enabled by default:
-# ActiveSupport::Inflector.inflections do |inflect|
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
 #   inflect.acronym 'RESTful'
 # end
diff --git a/spec/dummy/config/initializers/mime_types.rb b/spec/dummy/config/initializers/mime_types.rb
index 72aca7e..dc18996 100644
--- a/spec/dummy/config/initializers/mime_types.rb
+++ b/spec/dummy/config/initializers/mime_types.rb
@@ -2,4 +2,3 @@
 
 # Add new mime types for use in respond_to blocks:
 # Mime::Type.register "text/richtext", :rtf
-# Mime::Type.register_alias "text/html", :iphone
diff --git a/spec/dummy/config/initializers/session_store.rb b/spec/dummy/config/initializers/session_store.rb
index 952473f..e766b67 100644
--- a/spec/dummy/config/initializers/session_store.rb
+++ b/spec/dummy/config/initializers/session_store.rb
@@ -1,8 +1,3 @@
 # Be sure to restart your server when you modify this file.
 
-Dummy::Application.config.session_store :cookie_store, key: '_dummy_session'
-
-# Use the database for sessions instead of the cookie-based default,
-# which shouldn't be used to store highly confidential information
-# (create the session table with "rails generate session_migration")
-# Dummy::Application.config.session_store :active_record_store
+Rails.application.config.session_store :cookie_store, key: '_dummy_session'
diff --git a/spec/dummy/config/initializers/wrap_parameters.rb b/spec/dummy/config/initializers/wrap_parameters.rb
index c2f744d..33725e9 100644
--- a/spec/dummy/config/initializers/wrap_parameters.rb
+++ b/spec/dummy/config/initializers/wrap_parameters.rb
@@ -1,9 +1,14 @@
 # Be sure to restart your server when you modify this file.
-#
+
 # This file contains settings for ActionController::ParamsWrapper which
 # is enabled by default.
 
 # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
 ActiveSupport.on_load(:action_controller) do
-  wrap_parameters format: [:json]
+  wrap_parameters format: [:json] if respond_to?(:wrap_parameters)
 end
+
+# To enable root element in JSON for ActiveRecord objects.
+# ActiveSupport.on_load(:active_record) do
+#  self.include_root_in_json = true
+# end
diff --git a/spec/dummy/config/locales/en.yml b/spec/dummy/config/locales/en.yml
index 179c14c..0653957 100644
--- a/spec/dummy/config/locales/en.yml
+++ b/spec/dummy/config/locales/en.yml
@@ -1,5 +1,23 @@
-# Sample localization file for English. Add more files in this directory for other locales.
-# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
+# Files in the config/locales directory are used for internationalization
+# and are automatically loaded by Rails. If you want to use locales other
+# than English, add the necessary files in this directory.
+#
+# To use the locales, use `I18n.t`:
+#
+#     I18n.t 'hello'
+#
+# In views, this is aliased to just `t`:
+#
+#     <%= t('hello') %>
+#
+# To use a different locale, set it with `I18n.locale`:
+#
+#     I18n.locale = :es
+#
+# This would use the information in config/locales/es.yml.
+#
+# To learn more, please read the Rails Internationalization guide
+# available at http://guides.rubyonrails.org/i18n.html.
 
 en:
   hello: "Hello world"
diff --git a/spec/dummy/config/routes.rb b/spec/dummy/config/routes.rb
index 0bdb6cb..87582da 100644
--- a/spec/dummy/config/routes.rb
+++ b/spec/dummy/config/routes.rb
@@ -1,4 +1,4 @@
-Dummy::Application.routes.draw do
+Rails.application.routes.draw do
   resources :topics, only: [:new, :create, :update]
 
   root to: 'topics#new'
diff --git a/spec/dummy/config/secrets.yml b/spec/dummy/config/secrets.yml
new file mode 100644
index 0000000..8fd8d5a
--- /dev/null
+++ b/spec/dummy/config/secrets.yml
@@ -0,0 +1,22 @@
+# Be sure to restart your server when you modify this file.
+
+# Your secret key is used for verifying the integrity of signed cookies.
+# If you change this key, all old signed cookies will become invalid!
+
+# Make sure the secret is at least 30 characters and all random,
+# no regular words or you'll be exposed to dictionary attacks.
+# You can use `rake secret` to generate a secure secret key.
+
+# Make sure the secrets in this file are kept private
+# if you're sharing your code publicly.
+
+development:
+  secret_key_base: d55ed9a6ec6fc0b93d2404994c8632220ab5835d77ccbd52760c6fc4b9e0c83f87d78d9c2b66d366a698933feeac81efc445b29bad22c9f267ebdadbc5aebbd4
+
+test:
+  secret_key_base: 5df5772ea2c76236d1444a2e7a491c9f99f9bc96770b6b52e995555ea7a70b2bd3a3d0a45bbe7d32bf1a0eb450db7e32a838e6aa17c494b464ff381bb4bf9910
+
+# Do not keep production secrets in the repository,
+# instead read values from the environment.
+production:
+  secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>