+Add ZOOM_connection_option_getl() and ZOOM_options_getl(),
+corresponding to the existing *_setl() function. These allow option
+values containing arbitrary valuues.
+
+Add ZOOM_resultset_sort1(), which should ALWAYS be used in place of
+ZOOM_resultset_sort() in new applications. Its behaviour is identical
+except that it returns an indicator of whether or not the sort
+criterion was accepted (0 for OK, -1 for invalid).
+