2006-03-13  Murray Cumming  <murrayc@murrayc.com>

        * glom/data_structure/layout/custom_title.cc:
        * glom/data_structure/layout/custom_title.h: Added get/set_use_custom_title().
        * glom/data_structure/layout/layoutitem_field.cc:
        * glom/data_structure/layout/layoutitem_field.h: Added get_title_or_name_no_custom().
        get_title_or_name(): Return an empty custom title if use_custom_title is set.
        * glom/data_structure/translatable_item.cc:
        * glom/data_structure/translatable_item.h: get_translatable_type_name(): Add a result for
        custom field titles.
        * glom/document/document_glom.cc:
        * glom/document/document_glom.h: load_after_layout_item_field(), save_before_layout_item_field():
        Load/Save a bool use_custom_title attribute, to allow for empty custom titles.
        Added get_translatable_report_items().
        get_translatable_layout_items(): Handle GroupBy group-by fields and secondary fields.
        * glom/layout_item_dialogs/dialog_field_layout.cc: set_field(): Show the non-custom
        title as the default title, so it does not change if there is a custom title.
        * glom/translation/window_translations.cc: Use get_translatable_report_items() to get
        custom titles and GroupBy fields.