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/gtk/spinbutt.h

@@ -59,7 +59,7 @@ protected:
 private:
     typedef wxSpinButtonBase base_type;
 
-    DECLARE_DYNAMIC_CLASS(wxSpinButton)
+    wxDECLARE_DYNAMIC_CLASS(wxSpinButton);
 };
 
 #endif // _WX_GTK_SPINBUTT_H_