BareMetal: Code cosmetics

Change-Id: I99efd9b9e73efb17bbf3a9f81c5be6c57c325db7
Reviewed-by: Tim Sander <tim@krieglstein.org>
Reviewed-by: hjk <hjk121@nokiamail.com>
QmlDesigner.PropertyEditor: Use QmlModelNodeProxy in FileResourcesModel

Before the code was abusing the anchoring backend.

Change-Id: I716c5cfa7a5c72d500cb5ae8c943c52f84c60e91
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>