Reinvent deprecated qSort as Utils::sort

Change-Id: I4f6011cc2b6127037249aabc2426a88ad7108ebf
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/todo/todoitemsmodel.cpp

@@ -31,6 +31,8 @@
 #include "todoitemsmodel.h"
 #include "constants.h"
 
+#include <utils/algorithm.h>
+
 #include <QIcon>
 
 namespace Todo {
@@ -135,7 +137,7 @@ void TodoItemsModel::sort(int column, Qt::SortOrder order)
     m_currentSortOrder = order;
 
     TodoItemSortPredicate predicate(m_currentSortColumn, m_currentSortOrder);
-    qSort(m_todoItemsList->begin(), m_todoItemsList->end(), predicate);
+    Utils::sort(*m_todoItemsList, predicate);
     emit layoutChanged();
 }