added wxMenu::Append( wxMenuItem )

added keyboard hooks to glcanvas
  fixed probs with slider/spin button etc


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1830 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/scrolbar.cpp

@@ -37,6 +37,7 @@ static void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *wi
     
     float diff = win->m_adjust->value - win->m_oldPos;
     if (fabs(diff) < 0.2) return;
+    win->m_oldPos = win->m_adjust->value;
   
     wxEventType command = wxEVT_NULL;