Added ability to store creator, updater, date of create and date of edit on entities- columns for this added to Voucher and CampData.

Removed permission check from Service::loadById- caused access violation when user had not have read permission.

shop/shopservice.cpp

@@ -349,6 +349,8 @@ void ShopService::saveVoucher(VoucherPtr entity)
     Transaction tr;
     odb::database *db = Context::instance().db();
 
+    addDateAndUser(entity, true);
+
     db->persist(entity);
 
     foreach (QSharedPointer<VoucherItem> item, entity->items()) {
@@ -371,6 +373,8 @@ void ShopService::updateVoucher(VoucherPtr entity)
         db->persist(item);
     }
 
+    addDateAndUser(entity, false);
+
     db->update(entity);
 
     tr.commit();