Implement waiter ordering and improvements

app/models/order.rb

@@ -8,11 +8,11 @@ class Order
   belongs_to :user
   belongs_to :supplier
   belongs_to :section
+  belongs_to :employee
 
   has_many :product_orders, dependent: :destroy
   #has_many :products, through: :product_orders
   validates :supplier_id, presence: true
-  validates :user_id, presence: true
 
   view :active_for_supplier_view, type: :custom, map_function: %[function(doc){
     if(doc.ruby_class == 'Order' && (doc.state == 'placed' || doc.state == 'active')){