+ * Revision 1.33 1997-12-18 10:51:30 adam
+ * Implemented sub-trees feature for schemas - including forward
+ * references.
+ *
+ * Revision 1.32 1997/12/09 16:18:16 adam
+ * Work on EXPLAIN schema. First implementation of sub-schema facility
+ * in the *.abs files.
+ *
+ * Revision 1.31 1997/11/18 09:51:08 adam