Add order to tasks and lists

server/ajax/task.go

@@ -68,6 +68,14 @@ func (a *Ajax) makeTask(r *http.Request) (string, *task.Task, error) {
 	if err != nil {
 		return "", nil, err
 	}
+	list, err := a.storageGetList(listID)
+	if err != nil {
+		return "", nil, err
+	}
+	task.Index = list.NextIndex()
+	if err := a.storageSetList(list); err != nil {
+		return "", nil, err
+	}
 	task.AppendTags(tags)
 	return listID, task, nil
 }