pgsql: Add URLs for: * Add SQL:2003 WITH RECURSIVE (hierarchical)

Log Message:
-----------
Add URLs for:

* Add SQL:2003 WITH RECURSIVE (hierarchical) queries to SELECT

http://archives.postgresql.org/pgsql-patches/2008-01/msg00105.php
http://archives.postgresql.org/pgsql-patches/2008-03/msg00327.php

Modified Files:
--------------
pgsql/doc:
TODO (r1.2406 -> r1.2407)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/TODO?r1=1.2406&r2=1.2407)
pgsql/doc/src/FAQ:
TODO.html (r1.912 -> r1.913)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html?r1=1.912&r2=1.913)