* Version 3.5.4
* sql/metaclasses.lisp: Apply patch from Friedrich Dominicus to
fix accessor for new versions of SBCL
* db-oracle/oracle-sql.lisp: Apply patch from James Bielman
to improving parsing of time.
* db-db2/db2-constants.lisp: Change NULL_HANDLE has suggested
by Harold Lee.
* db-oracle/oracle-dbi.lisp: Add support for SQL BIT type
as noted by Russ Tyndall.