Added IFF handler.

Minor doc updates.
  Corrected configure for SGI OpenGL (wx-config related).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13585 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/gtk/todo.txt

@@ -1,8 +1,6 @@
 
 -------------------- High priority ---------------------
 
-Port to GTK 2.0 - including its Unicode support.
-
 Fix crash in DnD reported from Mahogany.
 
 -------------------- Medium priority ---------------------
@@ -18,6 +16,8 @@ Show accelerator control labels and actually implement them
 Right aligned checkboxes: focus highlighting is wrong, tooltips can't be set can't be set
   -> Postponed. GTK 2.0 can do that.
 
+Port to GTK 2.0 - including its Unicode support.
+
 Add wxNoteBook::GetPageIndex()
 Add wxNoteBook::SetTabPosition()
   -> Postponed.