2012-04-01  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* dialog-doc-metadata.c (dialog_doc_metadata_get_value_type):
	also use G_TYPE_FLOAT and G_TYPE_DOUBLE
	(dialog_doc_metadata_set_gsf_prop_val): don't depend solely on
	g_value_transform
	(cb_dialog_doc_metadata_tree_prop_selected): handle G_TYPE_UINT,
	G_TYPE_FLOAT and G_TYPE_DOUBLE.