removed from Item: update() and save() methods which take the 'url_was_changed' argument

and added ItemModelData (based on morm::ModelData) class which has 'prepare_unique_url' field,
an object of this class is passed to update(), insert() and save() methods

fixed: Dirs::CheckRootDir(): update should update childs too (privileges)

WIP: #4

winixd/plugins/seo/seo.cpp

@@ -81,7 +81,10 @@ void Seo::MakePost()
 	seo.Add(L"description", description);
 	seo.Add(L"keywords", keywords);
 
-	item.update(false, true);
+	ItemModelData item_model_data;
+	item_model_data.prepare_unique_url = false;
+
+	item.update(item_model_data);
 	//db->EditSubjectById(item, item.id);
 	//db->EditMetaById(item.meta, item.id);