Fix signup for rails4

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

app/controllers/application_controller.rb

@@ -9,6 +9,7 @@ class ApplicationController < ActionController::Base
   before_filter :dev_tools if Rails.env == 'development'
   before_filter :default_headers
   before_filter :add_gon_variables
+  before_filter :configure_permitted_parameters, if: :devise_controller?
 
   protect_from_forgery
 
@@ -201,4 +202,9 @@ class ApplicationController < ActionController::Base
       formats: [:html]
     )
   end
+
+  def configure_permitted_parameters
+    devise_parameter_sanitizer.for(:sign_in) { |u| u.permit(:username, :email, :password) }
+    devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:username, :email, :name, :password, :password_confirmation) }
+  end
 end