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.

src/gtk/window.cpp

@@ -2341,7 +2341,7 @@ wxMouseState wxGetMouseState()
 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
 // method
 #ifdef __WXUNIVERSAL__
-    IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
+    wxIMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase);
 #endif // __WXUNIVERSAL__
 
 void wxWindowGTK::Init()