2011-06-30  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* dialog-doc-metadata.c (dialog_doc_metadata_get_value_type_from_name):
	rewrite, add default argument and change all callers
	(dialog_doc_metadata_show_all_types): new
	(dialog_doc_metadata_show_this_type): new
	(cb_dialog_doc_metadata_ppt_changed): move part into
	(cb_dialog_doc_metadata_ppt_name_changed): new