Manually redid Qt 4.8 commit 206ebd5af21d94c3f3b49d2cb645105a63e6f5fb,
to make future code synchronization easier.
In order not to have to change the QmlApplicationViewer again, a
compatibility class QDeclarativeViewObserver is retained that subclasses
QDeclarativeViewInspector.
Change-Id: Ief87ae2f8f76b1db0c9d65085e4832424b277603
Reviewed-on: http://codereview.qt.nokia.com/242
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
Moved qmljsdebugger to a dir under qml/, made qmlobserver compile
without creator dependencies and made it compile with debugging
helpers.
Reviewed-by: hjk
