2006-10-06  Murray Cumming  <murrayc@murrayc.com>

        * glom/utility_widgets/db_adddel/Makefile.am:
        * glom/utility_widgets/imageglom.cc: Moved value->pixbuf
        conversion code from here to:
        * glom/libglom/data_structure/glomconversions.cc:
        * glom/libglom/data_structure/glomconversions.h:
        * glom/utility_widgets/db_adddel/cellrenderer_button.cc:
        * glom/utility_widgets/db_adddel/cellrenderer_button.h: renamed
        to
        * glom/utility_widgets/db_adddel/cellrenderer_buttonimage.cc:
        * glom/utility_widgets/db_adddel/cellrenderer_buttonimage.h:
        Added:
        * glom/utility_widgets/db_adddel/cellrenderer_buttontext.cc:
        * glom/utility_widgets/db_adddel/cellrenderer_buttontext.h:

        * glom/utility_widgets/db_adddel/db_adddel.cc:
        * glom/utility_widgets/db_adddel/db_adddel.h: add_column() now
        take a LayoutItem rather than only a LayoutItem_Field, so that
        the list can in future show other items, such as buttons.
        * glom/libglom/data_structure/layout/layoutgroup.cc:
        * glom/libglom/data_structure/layout/layoutitem.cc:
        * glom/libglom/data_structure/layout/layoutitem.h:
        * glom/libglom/data_structure/layout/layoutitem_field.cc:
        * glom/libglom/data_structure/layout/layoutitem_field.h:
        * glom/libglom/data_structure/layout/layoutitem_image.h:
        * glom/libglom/data_structure/layout/layoutitem_portal.cc:
        * glom/libglom/data_structure/layout/layoutitem_portal.h:
        * glom/libglom/utils.cc:
        * glom/mode_data/box_data.cc:
        * glom/mode_data/box_data_list.cc:
        * glom/mode_data/box_data_list.h:
        * glom/mode_data/box_data_list_related.cc:
        * glom/mode_data/box_data_list_related.h: Adapted.