session.h: Fix order of includes

Forgot to fix that in the last commit

Change-Id: I60f23be915f01c43fc3950ba6a97315176429842
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/projectexplorer/session.h

@@ -35,12 +35,13 @@
 
 #include "projectexplorer_export.h"
 
+#include <utils/persistentsettings.h>
+
 #include <QtCore/QHash>
 #include <QtCore/QString>
 #include <QtCore/QStringList>
 #include <QtCore/QMap>
 #include <QtCore/QFutureInterface>
-#include <utils/persistentsettings.h>
 
 QT_BEGIN_NAMESPACE
 class QAbstractItemModel;