Do not set focus inside ShowModal. Fixes wxWindow::SetFocus for modal dialogs, and wxFileDialog initial focus problem.

Index: src/gtk/dialog.cpp
===================================================================
RCS file: /pack/cvsroots/wxwidgets/wxWidgets/src/gtk/dialog.cpp,v
retrieving revision 1.109
retrieving revision 1.109.2.1
diff -u -B -w -p -r1.109 -r1.109.2.1
--- src/gtk/dialog.cpp	2005/06/20 08:18:39	1.109
+++ src/gtk/dialog.cpp	2006/07/29 16:40:58	1.109.2.1
@@ -205,8 +205,6 @@ int wxDialog::ShowModal()
     wxBusyCursorSuspender cs; // temporarily suppress the busy cursor
 
     Show( true );
-
-    SetFocus();
 
     m_modalShowing = true;