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.

samples/image/image.cpp

@@ -628,7 +628,7 @@ enum
     ID_SHOWTHUMBNAIL
 };
 
-IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
+wxIMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame );
 wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
     EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
@@ -964,7 +964,7 @@ void MyFrame::OnThumbnail( wxCommandEvent &WXUNUSED(event) )
 // MyApp
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_APP(MyApp)
+wxIMPLEMENT_APP(MyApp);
 
 bool MyApp::OnInit()
 {