We used to fail back to the old format if the .qmlproject file
was invalid. Anyhow, this lead to weird effects ... better disable
it explicitly.
That no warning is shown right now when loading an invalid qmlproject
file is a bug in coreplugin.
This adds a new "Design" mode that can be used to manipulate qml files
in a visual way. It will only get build if you have the declarativeui
module in Qt.
This is a squashed import from the Bauhaus project. Share & enjoy :)
