Fix namespace usage such that all classes in shared/qml live in the
Qml namespace, and classes in QmlDesigner plugin in the QmlDesigner
namespace.
This should prevent any symbol clashes until we can finally get rid
of the file dublicates (e.g. QmlDocument).
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 :)
