Migrate application to rails 4 step 1

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/application.rb

 require File.expand_path('../boot', __FILE__)
 
 require 'rails/all'
+require 'devise'
 
-if defined?(Bundler)
-  # If you precompile assets before deploying to production, use this line
-  # Bundler.require(*Rails.groups(assets: %w(development test)))
-  # If you want your assets lazily compiled in production, use this line
-  Bundler.require(:default, :assets, Rails.env)
-end
+Bundler.require(:default, Rails.env)
 
 module Gitlab
   class Application < Rails::Application

config/initializers/devise.rb

@@ -6,6 +6,7 @@ Devise.setup do |config|
   # note that it will be overwritten if you use your own mailer class with default "from" parameter.
   config.mailer_sender = Gitlab.config.gitlab.email_from
 
+
   # Configure the class responsible to send e-mails.
   # config.mailer = "Devise::Mailer"
 

config/initializers/gemoji.rb

 # Workaround for https://github.com/github/gemoji/pull/18
+require 'gemoji'
 Gitlab::Application.config.assets.paths << Emoji.images_path

config/initializers/secret_token.rb

@@ -21,3 +21,4 @@ def find_secure_token
 end
 
 Gitlab::Application.config.secret_token = find_secure_token
+Gitlab::Application.config.secret_key_base = find_secure_token

config/routes.rb

@@ -22,7 +22,7 @@ Gitlab::Application.routes.draw do
     project_root: Gitlab.config.gitlab_shell.repos_path,
     upload_pack:  Gitlab.config.gitlab_shell.upload_pack,
     receive_pack: Gitlab.config.gitlab_shell.receive_pack
-  }), at: '/', constraints: lambda { |request| /[-\/\w\.]+\.git\//.match(request.path_info) }
+  }), at: '/', constraints: lambda { |request| /[-\/\w\.]+\.git\//.match(request.path_info) }, via: [:get, :post]
 
   #
   # Help
@@ -131,7 +131,7 @@ Gitlab::Application.routes.draw do
     end
   end
 
-  match "/u/:username" => "users#show", as: :user, constraints: { username: /.*/ }
+  match "/u/:username" => "users#show", as: :user, constraints: { username: /.*/ }, via: :get