Memory leak in Help plugin

Hi,

There is a memory leak in Help plugin.

http://qt.gitorious.org/qt-creator/qt-creator/blobs/master/src/plugins/help/openpagesmanager.cpp#line66
src/plugins/help/openpagesmanager.cpp line 66

Created without parent - and no parent is setted up later.

m_openPagesWidget = new OpenPagesWidget(m_model);

explicit OpenPagesWidget(OpenPagesModel *model, QWidget *parent = 0);

And it is not deleted manually somewhere.

Stack for this memory leak:
QTreeView::QTreeView(QWidget*) (qtreeview.cpp:187)
Help::Internal::OpenPagesWidget::OpenPagesWidget(Help::Internal::OpenPagesModel*, QWidget*) (openpageswidget.cpp:90)
Help::Internal::OpenPagesManager::OpenPagesManager(QObject*) (openpagesmanager.cpp:66)
Help::Internal::HelpPlugin::initialize(QStringList const&, QString*) (helpplugin.cpp:158)
ExtensionSystem::Internal::PluginSpecPrivate::initializePlugin() (pluginspec.cpp:925)
ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) (pluginmanager.cpp:921)
ExtensionSystem::Internal::PluginManagerPrivate::loadPlugins() (pluginmanager.cpp:780)

Perhaps to fix
m_openPagesWidget = new OpenPagesWidget(m_model, this);
should be enough.