QmlDesigner.Model: Fix default type name

Change-Id: I9d3bc10f770e4dedbef14bb98ea918e8cfcab5d4
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@nokia.com>

src/plugins/qmldesigner/designercore/model/model.cpp

@@ -93,7 +93,7 @@ ModelPrivate::ModelPrivate(Model *model) :
         m_writeLock(false),
         m_internalIdCounter(1)
 {
-    m_rootInternalNode = createNode("QtQuick/Item", 1, 0, PropertyListType(), PropertyListType(), QString(), ModelNode::NodeWithoutSource,true);
+    m_rootInternalNode = createNode("QtQuick.Item", 1, 0, PropertyListType(), PropertyListType(), QString(), ModelNode::NodeWithoutSource,true);
     m_acutalStateNode = m_rootInternalNode;
 }