2007-11-26  Josselin Mouette <joss@malsain.org>

        reviewed by: Federico Mena Quintero

        * gtk/gtkfilechooserdefault.c: (shortcuts_append_paths),
        (shortcuts_add_bookmarks), (shortcuts_selection_changed_cb),
        (shortcuts_list_create), (gtk_file_chooser_default_should_respond):
        Make the shortcuts activate with a single click. (#148828)
        Fix a few things affected by the change:
          - Set selection mode to GTK_SELECTION_SINGLE to allow a case 
            where no shortcut is selected.
          - Don't activate a shortcut in the response callback.
          - Filter out duplicate entries in volumes and bookmarks to 
            avoid the selection to change when reordering them with DnD.


svn path=/trunk/; revision=19072