Update rails and code

Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '4.2.5'
+gem 'rails', '5.1.4'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3', '~> 1.3.13'
 # Use SCSS for stylesheets
@@ -14,6 +14,8 @@ gem 'coffee-rails', '~> 4.2.2'
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
 # gem 'therubyracer',  platforms: :ruby
 
+gem 'rails-controller-testing'
+
 # Use jquery as the JavaScript library
 gem 'jquery-rails', '~> 4.3.1'
 # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
@@ -23,10 +25,7 @@ gem 'jbuilder', '~> 2.7.0'
 # bundle exec rake doc:rails generates the API under doc/api.
 gem 'sdoc', '~> 0.4.2',          group: :doc
 
-gem 'web-console', '~> 2.0', group: :development
-
-
-gem 'quiet_assets', '~> 1.1.0', group: :development
+gem 'web-console', '~> 3.5.1', group: :development
 
 # Use Coveralls for coverage documentation
 gem 'coveralls', '~> 0.8.21', require: false