+ * Revision 1.10 1995-09-08 14:52:42 adam
+ * Work on relevance feedback.
+ *
+ * Revision 1.9 1995/09/07 13:58:43 adam
+ * New parameter: result-set file descriptor (RSFD) to support multiple
+ * positions within the same result-set.
+ * Boolean operators: and, or, not implemented.
+ *
+ * Revision 1.8 1995/09/06 16:11:56 adam
+ * More work on boolean sets.
+ *
+ * Revision 1.7 1995/09/06 10:35:44 adam
+ * Null set implemented.
+ *
+ * Revision 1.6 1995/09/05 11:43:24 adam
+ * Complete version of temporary sets. Not tested yet though.
+ *
+ * Revision 1.5 1995/09/04 12:33:56 adam
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.4 1995/09/04 09:10:55 adam
+ * Minor changes.
+ *
+ * Revision 1.3 1994/11/22 13:15:37 quinn
+ * Simple
+ *
+ * Revision 1.2 1994/11/04 14:53:12 quinn
+ * Work