Complete refactoring of orders-workflow.

OrderResult tables are removed. Data consistency is now possible through new article.price-history (ArticlePrice).
Balancing-workflow needs to be updated.

config/locales/de.yml

@@ -121,5 +121,5 @@ de:
       article: Artikel
     attributes:
       article:
-        net_price: Nettopreis
+        price: Nettopreis
         gross_price: Bruttopreis

config/routes.rb

@@ -3,6 +3,8 @@ ActionController::Routing::Routes.draw do |map|
   map.my_profile '/home/profile', :controller => 'home', :action => 'profile'
   map.my_tasks '/home/tasks', :controller => 'tasks', :action => 'myTasks'
 
+  map.resources :orders, :member => { :finish => :post, :add_comment => :post }
+
   map.resources :messages, :only => [:index, :show, :new, :create],
     :member => { :reply => :get, :user => :get, :group => :get }