(concord_obj_put_feature_value_str): Renamed from

(concord_obj_put_feature_value_str): Renamed from
`concord_stroid_set_feature_str'.
(concord_obj_get_feature_value): Renamed from
`concord_stroid_get_feature_object'.
(concord_obj_get_feature_value_string): Renamed from
`concord_stroid_get_feature_string'.
(concord_obj_gets_feature_value): Renamed from
`concord_stroid_gets_feature'.
(concord_feature_foreach_obj_string): Renamed from
`concord_feature_foreach_object_string'.
(concord_index_strid_get_obj_string): Renamed from
`concord_index_strid_get_object_string'.
(concord_index_strid_put_obj): Renamed from
`concord_index_strid_set_object_str'.