Merge wxQT branch into the trunk.

This merges in the latest sources from GSoC 2014 wxQt project with just a few
minor corrections, mostly undoing wrong changes to common files in that branch
(results of a previous bad merge?) and getting rid of whitespace-only changes.
Also remove debug logging from wxGrid.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77455 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/qt/clipbrd.h

@@ -0,0 +1,44 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/qt/toolbar.h
+// Author:      Sean D'Epagnier
+// Copyright:   (c) Sean D'Epagnier 2014
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_QT_CLIPBRD_H_
+#define _WX_QT_CLIPBRD_H_
+
+#include "wx/weakref.h"
+
+class QtClipBoardSignalHandler;
+
+class WXDLLIMPEXP_CORE wxClipboard : public wxClipboardBase
+{
+public:
+    wxClipboard();
+    ~wxClipboard();
+
+    virtual bool Open();
+    virtual void Close();
+    virtual bool IsOpened() const;
+
+    virtual bool AddData( wxDataObject *data );
+    virtual bool SetData( wxDataObject *data );
+    virtual bool GetData( wxDataObject& data );
+    virtual void Clear();
+    virtual bool IsSupported( const wxDataFormat& format );
+    virtual bool IsSupportedAsync(wxEvtHandler *sink);
+
+private:
+    friend class QtClipBoardSignalHandler;
+    int Mode();
+
+    QtClipBoardSignalHandler *m_SignalHandler;
+    wxEvtHandlerRef    m_sink;
+
+    bool m_open;
+    
+    DECLARE_DYNAMIC_CLASS(wxClipboard)
+};
+
+#endif // _WX_QT_CLIPBRD_H_