Make sure we call stop before removing a page.

Fixes a spinning cursor in case the page was not fully
loaded and we where closing it at the same time.

Change-Id: Iae6efac70c0c8be2f84e6b1551275bbdf9c5aab3
Reviewed-by: Niels Weber <niels.2.weber@nokia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@nokia.com>

src/plugins/help/openpagesmodel.cpp

@@ -87,6 +87,7 @@ void OpenPagesModel::removePage(int index)
     Q_ASSERT(index >= 0 && index < rowCount());
     beginRemoveRows(QModelIndex(), index, index);
     HelpViewer *page = m_pages.at(index);
+    page->stop();
     m_pages.removeAt(index);
     endRemoveRows();
     page->deleteLater();