+ * Revision 1.9 1998-05-20 10:12:14 adam
+ * Implemented automatic EXPLAIN database maintenance.
+ * Modified Zebra to work with ASN.1 compiled version of YAZ.
+ *
+ * Revision 1.8 1998/03/05 08:45:11 adam
+ * New result set model and modular ranking system. Moved towards
+ * descent server API. System information stored as "SGML" records.
+ *
+ * Revision 1.7 1997/10/29 12:05:01 adam
+ * Server produces diagnostic "Unsupported Attribute Set" when appropriate.
+ *
+ * Revision 1.6 1997/09/17 12:19:11 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.5 1997/09/05 15:30:08 adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.4 1996/10/29 14:06:48 adam