Device support: Let devices create project list model.

Now each device gets to decide in what way a process list
is set up and how a process gets killed. This enables
e.g. non-SSH based devices to provide process lists.
The default implementation provides an empty list.

Change-Id: Ibb352cd8a5ea556951b02ba512208daeb3b1e1a6
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/gdb/startgdbserverdialog.cpp

@@ -210,7 +210,7 @@ void StartGdbServerDialog::attachToDevice()
     if (!device)
         return;
     delete d->processList;
-    d->processList = new DeviceProcessList(device);
+    d->processList = device->createProcessListModel();
     d->proxyModel.setSourceModel(d->processList);
     connect(d->processList, SIGNAL(error(QString)),
         SLOT(handleRemoteError(QString)));