should destroy the search dialog

should destroy the search dialog

Fri Oct  5 19:06:07 2001  Kristian Rietveld  <kristian@planet.nl>

        * gtk/gtktreeview.c (gtk_tree_view_leave_notify): should
        destroy the search dialog

        * gtk/gtktreeview.c (gtk_tree_view_real_start_interactive_search):
        added check to prevent creation of a search dialog if there's
        already one around

        * gtk/gtktreeview.c: Define GTK_TREE_VIEW_SEARCH_DIALOG_KEY, and use
        it instead of "search-dialog" (when getting/setting the search dialog
        widget).