wip(works): upgrade to rails 5

Gemfile

@@ -1,43 +1,43 @@
 source 'https://rubygems.org'
 
-ruby '2.2.7'
+ruby '2.6.2'
 
-gem 'rails', '~> 4.2.7'
-gem 'sass-rails'
-gem 'uglifier', '>= 1.3.0'
-gem 'jquery-rails'
-gem 'jbuilder', '~> 1.2'
-gem 'figaro'
-gem 'haml-rails'
+gem 'active_model_serializers', '~> 0.10.9'
+gem 'algoliasearch-rails', '~> 1.20.6'
+gem 'angularjs-rails', '1.5.8'
+gem 'angular-rails-templates'
+gem 'actionpack-action_caching'
+gem 'activesupport', '5.1.0'
+gem 'aws-sdk', '~> 3.0'
+gem 'bluepill'
 gem 'bitters'
+gem 'delayed_job_active_record'
 gem 'bourbon'
-gem 'neat'
-gem 'therubyracer', '0.12.2'
+gem 'rails', '5.1.0'
+gem 'figaro'
+gem 'jbuilder'
+gem 'jquery-rails'
 gem 'hogan_assets'
-gem 'jquery-cookie-rails'
-gem 'algoliasearch-rails', '~> 1.20.6'
-gem 'aws-sdk', '~> 3.0'
+gem 'neat'
+# gem 'jquery-cookie-rails'
 gem 'open_uri_redirections'
+gem 'groupdate'
+gem 'sass-rails'
+gem 'rest-client'
+gem 'simple-rss'
 gem 'simple_enum', '~> 1.6.9'
-gem 'whenever'
 gem 'thin'
-gem 'rails-api'
-gem 'active_model_serializers'
-gem 'delayed_job_active_record'
-gem 'bluepill'
-gem 'groupdate', git: 'https://github.com/mieko/groupdate.git', branch: 'sqlite3'
-gem 'simple-rss'
-gem 'rest-client'
-gem 'angularjs-rails', '1.5.8'
-gem 'angular_xss'
-gem 'angular-rails-templates'
-gem 'actionpack-action_caching'
+gem 'therubyracer'
 gem 'turnout'
+gem 'uglifier', '>= 1.3.0'
+gem 'whenever'
 
 gem 'firebase', '0.2.2'
-gem "eventmachine"
-gem "em-http-request"
-gem "httparty"
+gem 'eventmachine'
+gem 'em-http-request'
+gem 'haml-rails'
+gem 'angular_xss'
+gem 'httparty'
 gem 'statsd-ruby'
 
 group :development do
@@ -48,31 +48,31 @@ group :development do
 
   gem 'capistrano', '< 3.0.0'
   gem 'rvm-capistrano', require: false
-  gem 'sqlite3'
+  gem 'sqlite3', '~> 1.3.0'
   gem 'better_errors'
-  gem 'binding_of_caller', :platforms=>[:mri_19, :mri_20, :mri_21, :rbx]
+  gem 'binding_of_caller', platforms: %i[mri_19 mri_20 mri_21 rbx]
   gem 'html2haml'
-  gem 'quiet_assets'
+  # gem 'quiet_assets'
   gem 'rails_layout'
   gem 'guard-bundler'
   gem 'guard-rails'
   gem 'guard-rspec'
   gem 'guard-pow', require: false
-  gem 'hub', :require=>nil
-  gem 'rb-fchange', :require=>false
-  gem 'rb-fsevent', :require=>false
-  gem 'rb-inotify', :require=>false
+  gem 'hub', require: nil
+  gem 'rb-fchange', require: false
+  gem 'rb-fsevent', require: false
+  gem 'rb-inotify', require: false
   gem 'spring-commands-rspec'
-  gem 'guard-livereload',        :require => false
+  gem 'guard-livereload', require: false
   gem 'rack-livereload'
   gem 'terminal-notifier-guard'
 end
 group :production do
   gem 'mysql2', '< 0.5'
-  gem "lograge"
+  gem 'lograge'
 end
 group :development, :test do
-  gem 'factory_girl_rails'
+  gem 'factory_bot_rails'
 end
 group :test do
   gem 'minitest-spec-rails'