Do not use deprecated Qt functionality.

Replace all* remaining deprecated Qt 4 functions with
their Qt 5 counterparts. This means we no longer need to
define the QT_DISABLE_DEPRECATED_BEFORE macro.
This patch is relatively small because most source-compatible
changes of this kind have been done before.

* The one exception is the QmlDesigner, which uses QWeakPointer
in a deprecated way all over the place.

Change-Id: Id4b839c6685f3b5bdf2b89137f95231758ec53c7
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/qmljseditor/qmloutlinemodel.cpp

@@ -306,8 +306,6 @@ QmlOutlineModel::QmlOutlineModel(QmlJSEditorDocument *document) :
     const QString resourcePath = Core::ICore::resourcePath();
     Icons::instance()->setIconFilesPath(resourcePath + QLatin1String("/qmlicons"));
 
-    // TODO: Maybe add a Copy Action?
-    setSupportedDragActions(Qt::MoveAction);
     setItemPrototype(new QmlOutlineItem(this));
 }
 
@@ -410,6 +408,12 @@ Qt::ItemFlags QmlOutlineModel::flags(const QModelIndex &index) const
     return flags;
 }
 
+Qt::DropActions QmlOutlineModel::supportedDragActions() const
+{
+    // TODO: Maybe add a Copy Action?
+    return Qt::MoveAction;
+}
+
 
 Document::Ptr QmlOutlineModel::document() const
 {