Log Message:
-----------
Re-add dblink_current_query() for backward compatibility.
Modified Files:
--------------
pgsql/contrib/dblink:
dblink.sql.in (r1.15 -> r1.16)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/dblink/dblink.sql.in?r1=1.15&r2=1.16)
uninstall_dblink.sql (r1.6 -> r1.7)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/dblink/uninstall_dblink.sql?r1=1.6&r2=1.7)