+ * Revision 1.17 1995-11-21 15:01:16 adam
+ * New general match criteria implemented.
+ * New feature: document groups.
+ *
+ * Revision 1.16 1995/11/20 11:56:27 adam
+ * Work on new traversal.
+ *
+ * Revision 1.15 1995/11/01 16:25:51 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.14 1995/10/17 18:02:09 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.13 1995/10/10 12:24:39 adam
+ * Temporary sort files are compressed.
+ *
+ * Revision 1.12 1995/10/04 16:57:20 adam
+ * Key input and merge sort in one pass.
+ *
+ * Revision 1.11 1995/09/29 14:01:45 adam
+ * Bug fixes.
+ *
+ * Revision 1.10 1995/09/28 14:22:57 adam
+ * Sort uses smaller temporary files.
+ *
+ * Revision 1.9 1995/09/14 07:48:24 adam
+ * Record control management.
+ *
+ * Revision 1.8 1995/09/06 16:11:18 adam
+ * Option: only one word key per file.
+ *
+ * Revision 1.7 1995/09/05 15:28:39 adam
+ * More work on search engine.
+ *
+ * Revision 1.6 1995/09/04 12:33:43 adam
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.5 1995/09/04 09:10:39 adam
+ * More work on index add/del/update.
+ * Merge sort implemented.
+ * Initial work on z39 server.
+ *
+ * Revision 1.4 1995/09/01 14:06:36 adam