Did somework on the generic dialogs,

Renamed wxBox -> wxBoxSizer
  Removed old dialog layout code,


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3341 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/choicdgg.h

@@ -80,6 +80,7 @@ public:
 
 protected:
     int         m_selection;
+    int         m_dialogStyle;
     wxString    m_stringSelection;
     wxListBox  *m_listbox;