Use wx-prefixed macros throughout the repository.

Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.

include/wx/qt/scrolbar.h

@@ -47,7 +47,7 @@ public:
 private:
     QScrollBar *m_qtScrollBar;
 
-    DECLARE_DYNAMIC_CLASS(wxScrollBar)
+    wxDECLARE_DYNAMIC_CLASS(wxScrollBar);
 };