[gtkmm] ListBox: Add the selected_rows_changed() signal.

[Murray Cumming <murrayc src gnome org>]

commit 4194745e04da0b71558965cf8dbb46801fab5963
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Sep 15 17:19:31 2014 +0200

    ListBox: Add the selected_rows_changed() signal.
    
    And ignore some more keybinding signals.

 gtk/src/listbox.hg |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtk/src/listbox.hg b/gtk/src/listbox.hg
index fcf9dc8..3f94094 100644
--- a/gtk/src/listbox.hg
+++ b/gtk/src/listbox.hg
@@ -243,7 +243,10 @@ public:
   _WRAP_SIGNAL(void row_selected(ListBoxRow* row), row-selected)
   _WRAP_SIGNAL(void row_activated(ListBoxRow* row), row-activated)
 
-  _IGNORE_SIGNAL(activate-cursor-row, toggle-cursor-row, move-cursor) // Action signals
+  //TODO: Remove no_default_handler when we can break ABI.
+  _WRAP_SIGNAL(void selected_rows_changed(), selected-rows-changed, no_default_handler)
+
+  _IGNORE_SIGNAL(activate-cursor-row, toggle-cursor-row, move-cursor, select-all, unselect-all) // Action 
signals
 };
 
 } // namespace Gtk