Upgrade dependencies

Gemfile

@@ -1,29 +1,32 @@
 source 'https://rubygems.org'
 
-gem 'rails', '4.2.1'
+gem 'rails'
 
-gem 'cryptcheck', '~> 1.0.0', path: File.expand_path(File.join File.dirname(__FILE__), '../cryptcheck')
-gem 'sidekiq', '~> 3.4.2'
-gem 'stretcher', '~> 1.21.1'
-gem 'faraday', '~> 0.8.9' # For stretcher compatibility
-gem 'simpleidn', '~> 0.0.5'
+gem 'cryptcheck', '~> 2.0.0', path: File.expand_path(File.join File.dirname(__FILE__), '../cryptcheck')
+
+gem 'dotenv-rails'
 gem 'http_accept_language'
+gem 'mongo'
+gem 'simpleidn'
+
+gem 'redis-namespace'
+gem 'sidekiq'
 
 group :assets do
 	gem 'therubyracer', platforms: :ruby
 	gem 'uglifier'
 
-	gem 'sass-rails', '~> 5.0.3'
-	gem 'coffee-rails', '~> 4.1.0'
-	gem 'jquery-rails', '~> 4.0.4'
-	gem 'bootstrap-sass', '~> 3.3.5'
-	gem 'font-awesome-sass', '~> 4.4.0'
+	gem 'bootstrap-sass'
+	gem 'coffee-rails'
+	gem 'font-awesome-sass'
+	gem 'jquery-rails'
+	gem 'sass-rails'
 end
 
 group :development, :test do
+	gem 'awesome_print'
 	gem 'puma'
 	gem 'web-console'
-	gem 'awesome_print'
 
 	gem 'pry-rails'